Communication terminal measurement system, communication terminal measurement apparatus, and measurement-related information display method

ABSTRACT

In a control device  22  having a control unit  31  that controls an NR measurement device  20  and an LTE measurement device  21  and a display unit  33  that displays control contents of the control unit  31 , the control unit  31  controls the display unit  33  such that the display unit  33  displays an NR simulation parameter display area  33   c   1  or an LTE simulation parameter display area  33   c   2  in accordance with the communication standard of the selected NR or LTE, in a case where the selection of either NR or LTE is received on the communication standard identification tabs  41   a  and  41   b  of the main screen  33   a.

TECHNICAL FIELD

The present invention relates to a communication terminal measurement system having a measurement function of a mobile communication terminal and a display control function of information relating to measurement, a communication terminal measurement apparatus, and a measurement-related information display method, for performing a test of a mobile communication terminal by simulating a base transceiver station in an operation mode in which new and old communication standards are mixed.

BACKGROUND ART

For example, in a mobile phone system, a speed of wireless communication with a wireless base transceiver station (hereinafter, a base transceiver station) is increased in accordance with the increase in the number of functions of a mobile terminal. In recent years, for example, a technology development for shifting from fourth generation (4G) services employing the LTE-Advanced system to fifth generation (5G) services is in progress.

In realizing a new wireless communication system (NR) for 5G, a non-standalone NR operated by a combination of LTE and NR disclosed in Non-Patent Document 1 is studied. Further, as disclosed in Non-Patent Document 2, non-standalone NR operation is based on use in combination of the carrier aggregation (hereinafter referred to as CA) technology and the dual connectivity (hereinafter referred to as DC) technology. In the CA technology, communication is performed by bundling component carriers (hereinafter, referred to as CCs) used before the LTE-Advanced standard in the same base transceiver station. In the DC technology, communication between an NR base transceiver station and an LTE base transceiver station is performed simultaneously.

First, the non-standalone NR operation will be described.

The non-standalone NR operation is being considered to be employed in the transition stage to a standalone system that can be operated only with NR, and is an operation mode for providing the 5G wireless service using the existing LTE/LTE-Advanced area and the NR area in combination.

In the non-standalone NR operation, for example, as shown in FIG. 24, an evolved packet core (EPC) is employed as a core network, and an LTE area and an NR area are mixed in the core network. In the LTE area and the NR area, a plurality of base transceiver stations (1st base transceiver station supporting LTE) to LTEn (nth base transceiver station supporting LTE) and NR1 (1st base transceiver station supporting NR) to NRn (nth base transceiver station supporting NR) may exist, respectively.

In the existing LTE/LTE-Advanced, there is a technology that employs a CA technology that bundles CCs of the same base transceiver station (BTS). However, in non-standalone NR operation, in addition to the CA technology, NR and LTE are combined with a DC technique that bundles carriers between different BTSs in each area.

In the network configuration of the non-standalone NR, the above-described DC performs data communication using radio resources of two BTSs called a master node and a secondary node. In this case, for example, as shown in FIG. 25, the following technology is employed. A master node MNB (Master Node BTS) serves as a branch point for user data transmission, and downlink data transmitted from an S-GW (Serving Gate Way) through an S1 interface is transferred to the carrier of the secondary node SNB (secondary Node BTS) through the carrier of the master node MNB or the X2 interface, thereby performing transmission to the carrier of the secondary node SNB.

In the DC in non-standalone NR operation, radio resource control (RRC) for connecting to a network is established only with the master node MNB, and controls the secondary node SNB through the master node MNB. This type of control includes control of addition of a secondary node for setting a carrier provided by the secondary node SNB to a user equipment (UE), which is a terminal, and control of deletion of a secondary node for deleting the carrier.

As an example, FIG. 26 shows a procedure for deleting a secondary node. In this deletion procedure, first, the user equipment UE transmits a measurement report to the MNB which is a base transceiver station operating as a master node to connect to the MNB, and then the DC setting procedure is executed in a case where it is notified through the user equipment UE that the quality of the cell subordinate to the SNB serving as the base transceiver station, in which the MNB is set as a secondary node, is favorable.

In the DC setting procedure, the base transceiver station MNB transmits a DC setting request (SN AdditionRequest) to the SNB (Step S01). The SNB stores the radio parameter information of the subordinate cell in a response signal (SN Addition Request Acknowledgement) to the DC setting request, and transmits the signal to the SNB (step S02). Subsequently, in a case of receiving the response signal from the SNB, the MNB transmits a radio resource setting signal (RRC connection reconfiguration) to the user equipment UE (step S03). The user equipment UE transmits a completion notification (RRC connection reconfiguration complete) corresponding to the setting signal to the MNB (step S04), starts a synchronization establishment procedure for the SNB, and reaches a connection status where connection with the SNB is established upon completion of the procedure.

Upon receiving the completion notification from the user equipment UE, the MNB transfers a completion notification (SN reconfiguration complete) to the SNB (Step S05), and completes the DC setting procedure. Thereafter, the base transceiver station MNB executes processing of distributing downlink user data sent from the S-GW to the base transceiver station SNB.

Further, a protocol stack as shown in FIG. 27 is employed in the DC in the non-standalone NR operation. In a configuration of the existing LTE, between the base transceiver station and UE, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a medium access control (MAC) layer, and a physical (physical) layer from the top are set. On the other hand, as shown in FIG. 27, in the DC, a plurality of base transceiver stations communicate with the user equipment UE. Thus, the protocol stack is separated on the base transceiver station side under the PDCP layer in the MNB, and the protocol stack similar to the conventional one is prepared for each of the MNB and the SNB on the RLC layer and the following layers. On the other hand, on the user equipment UE side, a protocol layer corresponding to each is prepared.

In the DC, a primary cell (PCell) and a secondary cell (SCell) used for transmission of control signals also have different functions from CA. In the CA, only a part of the functions of PCell is supported in the SCell. Specifically, the SCell does not support the physical uplink control channel (PUCCH), the contention based random access (CBRA), and the like, and the PCell basically performs transmission of hybrid automatic retransmission (HARQ) response signal and the uplink control information (UCI) as quality information of downlink (DL), an uplink scheduling request to the base transceiver station, and the like.

On the other hand, in the DC, the delay between the base transceiver stations MNB/SNB that bundle the carriers is large. Thus, the UCI and the scheduling request received by the PCell of the MNB are notified to the SNB in real time through the backhaul, and it is difficult to reflect the UCI and the scheduling request on the scheduling of the subordinate SCell.

Therefore, in DC, for example, as shown in FIG. 28, one carrier subordinate to the SNB is used as a primary SCell (PSCell) to support PUCCH transmission and CBRA in addition to the PCell, and the UCI and the scheduling request for each carrier subordinate to the SNB are transmitted directly from the user equipment UE to the SNB. Thereby, communication with a plurality of base transceiver stations can be realized without being affected by the delay between the MNB and the SNB. It should be noted that the PSCell also has a function that was previously supported only by the PCell, such as a downlink radio quality monitoring function. Therefore, the user equipment UE is able to perform stable transmission and reception with the SNB.

In the non-standalone NR operation equipped with the DC technology described with reference to FIGS. 24 to 28, in addition to “high speed and large capacity” in LTE/LTE-Advanced, advantages of “low delay and high reliability” can also be achieved.

For this reason, it is desired for a measurement device, which measures a terminal that performs communication according to the NR standard through the non-standalone NR operation, to have a display control function of drawing a cell (base transceiver station) image for detecting base transceiver stations in both NR and LTE areas which are set to perform simulative communication with the terminal and a carrier image for detecting the status of use of a carrier.

For an device for testing a communication operation of a mobile communication terminal by simulating a base transceiver station that transmits and receives signals based on various communication standards including LTE, for example, Patent Document 1 proposes a technology of performing display for detecting the contents of setting of multiplex communication and the status of the multiplex communication under test including information indicating a subordinate relationship of multiplex communication.

For example, the display control unit 5 described in Patent Document 1 controls the display unit 6 to perform, for example, a desired display in the display form shown in FIG. 29 in accordance with a control signal from the pseudo base transceiver station control unit 4 based on the setting information.

The display unit 6 is configured as a display such as a liquid crystal panel, and has a multiplex-communication-related display unit 6 d in addition to the sequence display unit 6 a, the connection status display unit 6 b, and the connection destination display unit 6 c.

For packet data communication for each service between the terminal 11 (for example, a mobile communication terminal such as a 4G terminal) and the virtual connection destination 12 through the measurement device 1, the sequence display unit 6 a displays a plurality of sequences indicating a communication procedure and a transition status of communication between the terminal 11 and the virtual connection destination 12.

Specifically, as shown in FIG. 29, the sequence display unit 6 a displays, as a plurality of sequences, a “Power Off” sequence indicating the power-off status of the terminal 11, a “Detach (position registration release)” sequence indicating a position registration release status of the terminal 11, a “Registration (position registration)” sequence indicating a position registration status of the terminal 11, an “Idle (standby status)” sequence indicating a standby status of the terminal 11, an “Origination (outgoing)” sequence indicating an outgoing status of the terminal 11, a “Termination (incoming)” sequence indicating an incoming status of the terminal 11, a “Communication (communication status)” sequence indicating a communication status of the terminal 11, a “UE (user equipment) Release (terminal disconnection)” sequence indicating a disconnection status from the terminal 11, and a “NW (network) Release (connection destination disconnection)” sequence indicating a disconnection status from virtual connection destination 12.

Under the control of the display control unit 5, these series of sequences are displayed in a flowchart form with arrows indicating each communication procedure and the transition direction of the communication status between the sequences. At that time, the display status changes in accordance with the transition status. That is, in a case where the corresponding sequence is in the transition status, the corresponding sequence is displayed in a display status different from the previous display status, for example, by changing the display color or the display luminance.

In FIG. 29, the arrows between the sequences in the sequence display unit 6 a indicate the communication procedures and the transition directions of the communication status.

The connection status display unit 6 b displays the connection status between the terminal 11 and the virtual connection destination 12 (a virtual call destination 12 a, a virtual server 12 b, or a virtual videophone 12 c) through the measurement device 1.

More specifically, the connection status display unit 6 b displays, as graphic icons, the terminal 11, the pseudo base transceiver station control unit 4, and the virtual connection destination 12 (the virtual call destination 12 a, the virtual server 12 b, or the virtual videophone 12 c) under the control of the display control unit 5, changes the display status in accordance with the presence or absence of connection, and graphically displays a plurality of connection lines between the terminal 11 for the pseudo base transceiver station control unit 4 and each of the virtual connection destination 12 (the virtual call destination 12 a, the virtual server 12 b, or the virtual videophone 12 c). That is, the display color of the corresponding connection line is changed or the display luminance is changed in accordance with the presence or absence of the connection.

The connection destination display unit 6 c graphically displays one virtual connection destination 12 (any of the virtual call destination 12 a, the virtual server 12 b, or the virtual videophone 12 c) to which the terminal 11 is connected through the pseudo base transceiver station control unit 4.

in a case where the terminal 11 performs the multiplex communication, under the control of the display control unit 5 through the pseudo base transceiver station control unit 4, the multiplex-communication-related display unit 6 d displays the above-mentioned Priority, Status, PDN/PDP-Type, IP-version, QCI, EBI/NSAPI, Linked-EBI/Linked-NSAPI, UE-Address, DNS-Address, and Access-Point-Name as the multiplex-communication-related information, for example in a list format as shown in FIG. 29. The multiplex-communication-related information is determined by the display information determination unit 13 in order to detect the setting contents of the multiplex communication and the status of the multiplex communication under test.

Conventionally, the simulation model setting screen for setting a simulation model is displayed with a screen configuration as shown in FIG. 30. The conventional simulation model parameter setting screen 331 shown in FIG. 30 has a simulation model area 331 a and a simulation model display area 331 b.

In the operation of the conventional test apparatus having the above configuration, for example, it is necessary to set the simulation parameters for the set NR and LTE cells after setting the number of base transceiver stations for the radio access technology (RAT) (the number of RAT cells: NR and LTE cells) by using the simulation model setting screen 331 (refer to FIG. 30).

In order to set simulation parameters, conventionally, as shown in FIG. 31, a simulation parameter setting screen 33 m 4 is displayed in, for example, the connection status display area 33 m 2 of the main screen 33 m. The main screen 33 m includes a simulation parameter display screen 33 m 4, a sequence display area 33 m 1, a connection status display area 33 m 2, and a sequence log display area 33 m 3, where base transceiver station identification tabs 40 a, 40 b, 40 c, 40 d, and 40 e (hereinafter, may be collectively referred to as base transceiver station identification tabs 40) corresponding to a base transceiver station for NR or LTE are provided vertically at a required position on the right end of the screen.

By selecting one of the plurality of base transceiver station identification tabs 40, a simulation parameter setting screen 33 m 4 relating to the base transceiver stations (NR and LTE cells) for the communication standard corresponding to the selected base transceiver station identification tab 40 is displayed on the main screen 33 m having the above-mentioned configuration. FIG. 31 shows a display example of the simulation parameter setting screen 33 m 4 in a case where the base transceiver station identification tab 40 of “NR1” is selected. Similarly, also in a case where the base transceiver station identification tabs 40 of “NR2”, “LTE1”, “LTE2”, and “LTE3” are selected, the simulation parameter setting screen 33 m 4 relating to the base transceiver stations for the communication standard corresponding to the selected base transceiver station identification tab 40 is displayed.

In the conventional display mode of the simulation parameter setting screen 33 m 4, only one simulation parameter setting screen 33 m 4 of one base transceiver station can be displayed in the connection status display area 33 m 2 of the main screen 33 m, and it is not possible to proceed with setting of simulation parameters while confirming the setting status of another base transceiver station for the same standard.

Further, as a tool for confirming the connection parameters in a case where the base transceiver station is connected to the mobile communication terminal after setting the simulation parameters, conventionally, as shown in FIG. 32, for example, at the top of the connection status display area 33 m 2 of the main screen 33 m, operation toolbars 48 a, 48 b, 48 c, 48 d, and 48 e (hereinafter may be collectively referred to as operation toolbars 48) respectively corresponding to base transceiver stations of which the simulation parameters have been set, that is, the base transceiver station identification tabs 40 are displayed.

While the main screen 33 m is being displayed, the user may select the operation toolbar 48 corresponding to the desired base transceiver station to confirm the connection parameters. In such a manner, as shown in FIG. 33, the connection parameter display area 49 corresponding to the base transceiver station selected by the operation toolbar 48 is displayed, and the connection parameter for connection with the mobile communication terminal in the base transceiver station is displayed as an image in the connection parameter display area 49. In particular, in FIG. 33, three operation toolbars 48 a, 48 b, and 48 c respectively corresponding to the base transceiver stations NR1, NR2, and LTE1 are selected in order, and three connection parameter display areas 49 (49 a, 49 b, 49 c) corresponding to the base transceiver stations NR1, NR2, and LTE1 are displayed in multiple stages, in the selected order.

RELATED ART DOCUMENT Non-Patent Document

-   [Non-Patent Document 1] Uchino, Teshima, Takeda {NTT DOCOMO     Technical Journal} Vol. 23 No. 2 pp. 35-45 (July 2015) -   [Non-patent Document 2] Minoguchi, Isobe, Takahashi, Nagata {NTT     DOCOMO Technical Journal} Vol. 25 No. 3 pp. 6-12 (October 2017)

Patent Document

-   [Patent Document 1] U.S. Pat. No. 5,290,359 (Japanese Patent     Application Laid-Open No. 2013-9254)

DISCLOSURE OF THE INVENTION Problem that the Invention is to Solve

Thus, conventionally, the main screen having the same number of base transceiver station identification tabs 40 as the number of base transceiver stations is displayed, and the simulation parameter setting screen 33 m 4 of the base transceiver station corresponding to the selected base transceiver station identification tab 40 is displayed. Therefore, it is difficult to proceed with setting while viewing the setting status of the simulation parameters of multiple base transceiver stations, that is, viewing the whole.

In addition, in this type of measurement device, it is expected that the number of base transceiver stations will increase in the future in both the old and new communication standards (NR and LTE) with respect to the progress of non-standalone NR operation. Under such circumstances, in the conventional method of displaying the simulation parameter display area, there is a problem in that it is more and more difficult to set the simulation parameters from the perspective of the whole while considering the setting status of base transceiver stations for the same communication standard.

The present invention has been made in order to solve the problems in the conventional simulation parameter display area. It is an object of the present invention to provide a communication terminal measurement system, a communication terminal measurement apparatus, and a measurement-related information display method capable of displaying an operation screen that is comfortable to view and has favorable operability in order to perform setting of the simulation parameters even in a case where the number of base transceiver stations compliant with the old and new communication standards increases.

Means for Solving the Problem

In order to solve the above problems, a communication terminal measurement system of the present invention is configured to include: a communication terminal measurement apparatus (20) that is compliant with a first communication standard of mobile communication; a communication terminal measurement apparatus (21) that is compliant with a second communication standard of mobile communication; a control device (22) that has a control unit (31) controlling the communication terminal measurement apparatus compliant with the first communication standard and the communication terminal measurement apparatus compliant with the second communication standard, and a display unit (6 e, 33) displaying control contents of the control unit. A mobile communication terminal (11 a) is tested by simulating three or more base transceiver stations each of which is compliant with the first communication standard or the second communication standard. The display unit includes tabs (41 a, 41 b) for identifying the first communication standard or the second communication standard, a first simulation parameter display area (33 c 1) in which simulation parameters of respective base transceiver stations compliant with the first communication standard are displayed in array for each base transceiver station, and a second simulation parameter display area (33 c 2) in which simulation parameters of respective base transceiver stations compliant with the second communication standard are displayed in array for each base transceiver station. The control unit performs control such that the first simulation parameter display area or the second simulation parameter display area is displayed in a case of receiving selection of either the first communication standard or the second communication standard on the tabs.

With such a configuration, the communication terminal measurement system of the present invention is able to display a list of simulation parameters of base transceiver stations compliant with the first communication standard or the second communication standard. Thereby, it is easy to understand the simulation parameter information of a plurality of base transceiver stations corresponding to each communication standard. As a result, even in a case where the number of base transceiver stations increases, it is possible to efficiently set the simulation parameters while viewing the overall situation for each communication standard, and to easily confirm the settings. In addition, the simulation parameters can be set and the settings can be confirmed using two types of tabs. Thus, it is possible to make a screen configuration, which is simpler, easier to view, and has better operability than that of the conventional system that requires the number of tabs corresponding to the number of base transceiver stations.

The communication terminal measurement system according to another aspect of the present invention may be configured such that the display unit further includes a base transceiver station selection toolbar (45) in which base transceiver station selection tabs (46) for individually selecting base transceiver stations each of which is compliant with the first communication standard or the second communication standard are arranged in a line; and a display command toolbar (47) which is disposed adjacent to the base transceiver station selection toolbar, and after a base transceiver station for the first communication standard or a base transceiver station for the second communication standard is selected by the base transceiver station selection tab, the control unit displays a connection parameter of connection between any one of the selected base transceiver stations and the mobile communication terminal in accordance with a selection operation of the display command toolbar.

With such a configuration, in the communication terminal measurement system according to another aspect of the present invention, it is possible to make a screen, which is for displaying connection parameters of a base transceiver station having a desired communication standard and a base transceiver station number, have a simple configuration including two toolbars of a base transceiver station selection toolbar, and a display command toolbar and displaying only the connection parameters of the base transceiver station selected by the base transceiver station selection toolbar. Thereby, it is possible to prevent the screen from being covered with toolbars and being difficult to view, as in a conventional system having the number of toolbars corresponding to the number of base transceiver stations and displaying connection parameters of a plurality of base transceiver stations. As a result, it is possible to make the operation of confirming the connection parameters easy.

The communication terminal measurement system according to another aspect of the present invention may be configured such that the display unit further includes a main screen (33 a) which includes a connection status display area (33 a 2) and in which the base transceiver station selection toolbar and the display command toolbar are arranged and in which the tab is provided, and the control unit displays the first simulation parameter display area or the second simulation parameter display area in the connection status display area, in a case of receiving the selection of the tab.

With such a configuration, the communication terminal measurement system according to another aspect of the present invention is able to ensure an area for setting simulation parameters for the first communication standard or the second communication standard on the connection status display area of the main screen in accordance with the selection of the tab. Thus, simulation parameters of each communication standard can be set and settings can be promptly confirmed.

The communication terminal measurement system according to another aspect of the present invention may be configured such that, in a case where the control unit receives the selection of the tab and then further receives a predetermined non-display selection operation, the control unit hides the first simulation parameter display area or the second simulation parameter display area being displayed.

With such a configuration, the communication terminal measurement system according to another aspect of the present invention is able to promptly access the functions of the main screen while improving the performance while improving operability relating to the simulation parameter setting and setting confirmation by displaying the first simulation parameter display area or the second simulation parameter display area.

The communication terminal measurement system according to another aspect of the present invention may be configured such that the first communication standard is any one of NR or LTE, and the second communication standard is the other one of NR or LTE.

With such a configuration, in the communication terminal measurement system according to another aspect of the present invention, it is possible to efficiently set simulation parameters while viewing the overall situation for each NR and LTE communication standard, even in a case where either the number of NR base transceiver stations or the number of LTE base transceiver stations increases. In addition, using only two types of tabs, it is possible to perform a smooth transition to the work of setting simulation parameters relating to NR and LTE and confirming the settings.

Further, the communication terminal measurement apparatus of the present invention has a configuration corresponding to either the first communication standard or the second communication standard, which is used in the communication terminal measurement system of any one of the aspects described above.

With such a configuration, in the communication terminal measurement apparatus according to the present invention, even in a case where the number of base transceiver stations compliant with the first communication standard or the second communication standard increases, the communication terminal measurement system according to any of the above-mentioned aspects is able to efficiently carry out the test of the mobile communication terminal corresponding to either the first communication standard or the second communication standard in accordance with the fact that the simulation parameters can be efficiently set while viewing the overall situation for each communication standard and the setting can be easily confirmed. In addition, the communication terminal measurement apparatus of the present invention allows the communication terminal measurement system according to any one of the above-described aspects to be able to set the simulation parameter and confirm the setting by using two types of tabs, and to smoothly carry out tests of mobile communication terminals compliant with either the first communication standard or the second communication standard in accordance with a screen configuration which is simple, is comfortable to view, and has favorable operability, as compared with the conventional system.

A communication terminal measurement apparatus according to another aspect of the present invention tests a mobile communication terminal (11 a) by simulating three or more base transceiver stations each of which is compliant with a first communication standard or a second communication standard. The communication terminal measurement apparatus includes: a control unit (31) that controls the communication terminal measurement apparatus; and a display unit (6 e, 33) that displays control contents of the control unit. The display unit includes tabs (41 a, 41 b) for identifying the first communication standard or the second communication standard, a first simulation parameter display area (33 c 1) in which simulation parameters of each of the base transceiver stations compliant with the first communication standard are displayed in array for each base transceiver station, and a second simulation parameter display area (33 c 2) in which simulation parameters of each of the base transceiver stations compliant with the second communication standard are displayed in array for each base transceiver station, and the control unit performs control such that in a case of receiving selection of either the first communication standard or the second communication standard on the tab, the first simulation parameter display area or the second simulation parameter display area is displayed in accordance with the tab for identifying the selected communication standard.

With such a configuration, the communication terminal measurement apparatus according to another aspect of the present invention is able to display a list of simulation parameters of base transceiver stations compliant with the first communication standard or the second communication standard through the display control of the control unit. Thereby, it is easy to understand the simulation parameter information of a plurality of base transceiver stations corresponding to each communication standard. As a result, even in a case where the number of base transceiver stations increases, it is possible to efficiently set the simulation parameters while viewing the overall situation for each communication standard, and to easily confirm the settings. In addition, the simulation parameters can be set and the settings can be confirmed using two types of tabs. Thus, it is possible to make a screen configuration, which is simpler, easier to view, and has better operability than that of the conventional system that requires the number of tabs corresponding to the number of base transceiver stations.

A communication terminal measurement apparatus according to another aspect of the present invention tests a mobile communication terminal (11 a) by simulating three or more base transceiver stations each of which is compliant with a first communication standard or a second communication standard. The communication terminal measurement apparatus is controlled by a control device including: a control unit (31) that controls the communication terminal measurement apparatus; and a display unit (6 e, 33) that displays control contents of the control unit. The display unit includes tabs (41 a, 41 b) for identifying the first communication standard or the second communication standard, a first simulation parameter display area (33 c 1) in which simulation parameters of each of the base transceiver stations compliant with the first communication standard are displayed in array for each base transceiver station, and a second simulation parameter display area (33 c 2) in which simulation parameters of each of the base transceiver stations compliant with the second communication standard are displayed in array for each base transceiver station, and the control unit performs control such that in a case of receiving selection of either the first communication standard or the second communication standard on the tab, the first simulation parameter display area or the second simulation parameter display area is displayed in accordance with the tab for identifying the selected communication standard.

With such a configuration, the communication terminal measurement apparatus according to another aspect of the present invention is able to display a list of simulation parameters of base transceiver stations compliant with the first communication standard or the second communication standard through the display control in the control unit of the control device. Thereby, it is easy to understand the simulation parameter information of a plurality of base transceiver stations corresponding to each communication standard. As a result, even in a case where the number of base transceiver stations increases, it is possible to efficiently set the simulation parameters while viewing the overall situation for each communication standard, and to easily confirm the settings. In addition, the simulation parameters can be set and the settings can be confirmed using two types of tabs. Thus, it is possible to make a screen configuration, which is simpler, easier to view, and has better operability than that of the conventional system that requires the number of tabs corresponding to the number of base transceiver stations.

Further, a measurement-related information display method of the present invention simulates three or more base transceiver stations each of which is compliant with a first communication standard or a second communication standard and displaying measurement-related information relating to measurement of a mobile communication terminal (11 a). The method includes: a step of displaying a main screen (33 a) having tabs (41 a, 41 b) for identifying the first communication standard or the second communication standard (S31); a step of receiving a selection of either the first communication standard or the second communication standard on the tab (S36 a); and a step of performing control to display, on the main screen, a first simulation parameter display area, in which simulation parameters of each of the base transceiver stations compliant with the first communication standard are displayed in array for each base transceiver station, or a second simulation parameter display area, in which the simulation parameters of each of the base transceiver stations compliant with the second communication standard are displayed in array for each base transceiver station, in accordance with the tab for identifying the selected communication standard (S36 b, S36 c, S36 d).

With such a configuration, in the measurement-related information display method of the present invention, a list of simulation parameters of base transceiver stations compliant with the first communication standard or the second communication standard is displayed, and the simulation parameters can be efficiently set while the overall situation is viewed for each communication standard even in a case where the number of base transceiver stations increases. As a result, it is possible to display an operation screen which is easy to confirm setting, is simple, is comfortable to view, and has favorable operability.

Advantage of the Invention

The present invention is able to provide a communication terminal measurement system, a communication terminal measurement apparatus, and a measurement-related information display method capable of displaying an operation screen that is comfortable to view and has favorable operability in order to perform setting of simulation parameters and confirm the setting even in a case where the number of base transceiver stations compliant with old and new communication standards increases.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing a configuration of a measurement device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an example of a display processing procedure in a case where a measurement device according to an embodiment of the present invention performs transmission.

FIG. 3 is a flowchart showing an example of a display processing procedure in a case where a mobile communication terminal as a measurement target by the measurement device according to an embodiment of the present invention performs transmission.

FIG. 4 is a block diagram showing a connection configuration of a measurement device according to an embodiment of the present invention as a communication terminal measurement system.

FIG. 5 is a block diagram showing a functional configuration of a control device in FIG. 4.

FIG. 6 is a flowchart showing an example of a display processing procedure in a terminal measurement parameter setting stage of the measurement device according to an embodiment of the present invention.

FIG. 7 is a flowchart showing details of a simulation parameter setting processing in S36 of FIG. 6.

FIG. 8 is a flowchart showing an example of a display processing procedure in a terminal execution of the measurement stage of the measurement device according to an embodiment of the present invention.

FIG. 9 is a diagram showing a display example of a main screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 10 is a diagram showing a display example of a main screen of another example used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 11 is a diagram showing a screen configuration of a main screen in a case where the simulation parameter setting screen is hidden on the main screen in FIG. 9.

FIG. 12 is a diagram showing a screen configuration of a main screen in a case where the simulation parameter setting screen is hidden on the main screen in FIG. 10.

FIG. 13 is a diagram showing a display example of a simulation model setting screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 14 is an enlarged view showing a RAT cell number setting area of the simulation model setting screen in FIG. 13.

FIG. 15 is an enlarged view showing a simulation model display area of the simulation model setting screen in FIG. 13.

FIG. 16 is a diagram showing a display example of a connection confirmation/support request screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 17 is a diagram showing a display example of a DC operation confirmation screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 18 is a diagram showing a display example of another example of a DC operation confirmation screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 19 is a diagram showing a display example of a test case confirmation screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 20 is a diagram showing a display example of a component confirmation screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 21 is a diagram showing a display example of another example of a component confirmation screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 22 is a diagram showing a display example of a power characteristic confirmation screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 23 is a diagram showing a display example of a throughput confirmation screen used for measurement of a terminal of the measurement device according to an embodiment of the present invention.

FIG. 24 is a schematic diagram of a conventional technique showing an operation image of a non-standalone 5G wireless in which a communication terminal as a measurement target by the measurement device according to an embodiment of the present invention is disposed.

FIG. 25 is a schematic diagram of a related art showing a network configuration relating to DC of non-standalone 5G wireless.

FIG. 26 is a sequence diagram of a related art showing a base transceiver station addition procedure in DC of non-standalone 5G wireless.

FIG. 27 is a diagram showing a conventional protocol stack in DC of non-standalone 5G wireless.

FIG. 28 is a schematic diagram showing a configuration of a conventional cell group in a non-standalone 5G wireless DC.

FIG. 29 is a prior art diagram showing a display example of measurement-related information of the measurement device according to an embodiment of the present invention.

FIG. 30 is a diagram showing a display example of a simulation model setting screen having a RAT cell number setting area and a simulation model display area in a conventional measurement device.

FIG. 31 is a diagram showing a display example of a simulation parameter setting screen on a main screen of a conventional measurement device.

FIG. 32 is a diagram showing a display example of an operation toolbar for displaying connection parameters on the main screen of the conventional measurement device.

FIG. 33 is a diagram showing a display example of a connection parameter display area according to a selection operation of the operation toolbar on the main screen shown in FIG. 32.

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, an embodiment of a communication terminal measurement system, a communication terminal measurement apparatus, and a measurement-related information display method according to the present invention will be described with reference to the drawings.

A communication terminal measurement system and a communication terminal measurement apparatus according to the present invention transmit and receive a signal (RF signal) based on a predetermined communication standard (for example, LTE or NR) with a newly developed mobile communication terminal such as a mobile phone. Thereby, the communication operation of the mobile communication terminal is tested by simulating a base transceiver station.

In particular, the communication terminal measurement system and the communication terminal measurement apparatus according to the present invention can also support the measurement of a terminal performing communication according to the above-mentioned NR communication standard, and has a function of simulating NR base transceiver stations and LTE base transceiver stations arranged in each area of NR and LTE in a non-standalone NR network. The NR communication standard and the LTE communication standard correspond to the first communication standard and the second communication standard of the present invention, respectively.

The communication terminal measurement system and the communication terminal measurement apparatus according to the present invention include: a display function for detecting the setting contents of the multiplex communication and the status of the multiplex communication under test, including information indicating the subordinate relationship of the multiplex communication; a measurement function of the user equipment UE (terminal) provided for the non-standalone NR operation; and a display function for displaying measurement-related information relating to the measurement.

As shown in FIG. 1, the measurement device 1A according to one embodiment of the present invention is schematically configured to include, as components for realizing the measurement function and the display function, an operation unit 2, a transmitting/receiving unit 3, a pseudo base transceiver station control unit 4, a display control unit 5, and a display unit 6. Hereinafter, each component will be described. The measurement device 1A constitutes the communication terminal measurement apparatus of the present invention.

The operation unit 2 includes an operation panel such as switches and buttons provided on the front surface of the housing of the measurement device 1A, for example. The operation unit selectively performs an instruction to start or stop a communication operation test of a mobile communication terminal (hereinafter, abbreviated as a terminal) 11 a to be tested, and various settings necessary for a communication operation test of the terminal 11 a including various kinds of information settings necessary for performing a desired display on a display unit 6 (a sequence display unit 6 a, a connection status display unit 6 b, a connection destination display unit 6 c, and a multiplex-communication-related display unit 6 d to be described later). The terminal 11 a described in the present embodiment is a 5G terminal, and is compliant with 5GNR, LTE, and pre-LTE communication standards.

Under the control of the pseudo base transceiver station control unit 4, the transmitting/receiving unit 3 transmits a signal (RF signal) of the NR communication standard, the LTE communication standard, or the pre-LTE communication standard from a virtual connection destination 12 to the terminal 11 a as a test target, and inputs the signal (RF signal) of the NR communication standard, the LTE communication standard, or the pre-LTE communication standard received from the terminal 11 a to the virtual connection destination 12. The transmitting/receiving unit 3 has a function of appropriately transmitting and receiving signals conforming to the NR communication standard, the LTE communication standard, and the pre-LTE communication standard between the pseudo base transceiver station and the terminal 11 a.

The virtual connection destination 12 is a destination that is incorporated in the measurement device 1A and can be connected to the terminal 11 a under the control of the pseudo base transceiver station control unit 4, and corresponds to a virtual call destination 12 a, a virtual server 12 b, a virtual videophone 12 c, a virtual NR network 12 d, and the like as shown in FIG. 1.

The pseudo base transceiver station control unit 4 collectively controls each unit of the transmitting/receiving unit 3, the display control unit 5, and the display unit 6 based on the operation information of the operation unit 2 so as to execute a predetermined scenario and perform a communication operation test of the terminal 11 a.

It should be noted that the scenario describes a test procedure of a series of operations for simulating a communication sequence based on a predetermined communication standard (for example, LTE standard, NR standard, or the like) in the measurement device 1A that simulates a base transceiver station. In the measurement device 1A according to the present embodiment, a description is also given of, as the above-described scenario, a test procedure of a series of operations for simulating a communication sequence based on the NR communication standard between each base transceiver station in the LTE and NR areas in the network relating to the non-standalone NR operation and the terminal 11 a that is the measurement target terminal. That is, the virtual NR network 12 d, which is one of the virtual connection destinations 12, has a functional configuration for simulating communication with the terminal 11 a based on the NR communication standard.

In addition, in a case where the terminal 11 a performs multiplex communication, the pseudo base transceiver station control unit 4 has a display information determination unit 13 that determines various types of display information to be displayed on the multiplex-communication-related display unit 6 d to be described later on the basis of operation information (including setting information) from the operation unit 2 and notification information from the terminal 11 a.

More specifically, as shown in FIG. 1, the display information determination unit 13 includes a Priority determination unit 13 a, a Status determination unit 13 b, a PDN/PDP-Type determination unit 13 c, an internet protocol (IP)-version determination unit 13 d, a QCI determination unit 13 e, an EPS bearer identifier (EBI)/network service access point identifier (NSAPI) determination unit 13 f, a Linked-EBI/Linked-NSAPI determination unit 13 g, a UE-Address determination unit 13 h, a domain name system (DNS)-Address determination unit 13 i, an Access-Point-Name determination unit 13 j, and an NR measurement-related information determination unit 13 k.

The pre-LTE, LTE, and NR systems share the Priority determination unit 13 a, the Status determination unit 13 b, the PDN/PDP-Type determination unit 13 c, the internet protocol (IP)-version determination unit 13 d, the QCI determination unit 13 e, the EPS bearer identifier (EBI)/network service access point identifier (NSAPI) determination unit 13 f, the Linked-EBI/Linked-NSAPI determination unit 13 g, the UE-Address determination unit 13 h, the domain name system (DNS)-Address determination unit 13 i, and the Access-Point-Name determination unit 13 j. The NR measurement-related information determination unit 13 k processes only NR information.

The Priority determination unit 13 a determines Priority, which is a number for distinguishing a packet data network (PDN) or a packet data protocol (PDP), inside the measurement device LA. In a case where the terminal 11 a performs transmission, the measurement device 1A automatically adds the priority in response to the call from the terminal 11 a. In addition, in a case where the measurement device 1A performs transmission, a tester operates the operation unit 2 to perform the setting in advance.

The PDN or PDP is a logical connection through packet data communication for each service between the terminal (hereinafter, also referred to as UE) 11 and the virtual connection destination 12 through a packet data communication network, and the logical connection is referred to as PDN in LTE and referred to as PDP in GSM (registered trademark)/W-CDMA.

The multi-PDP (multi-PDN) means a plurality of PDPs (PDNs), that is, multiple connections, and is roughly classified into two types of (A) and (B) shown below, and the two types may be mixed.

(A) PDPs based on completely different services are multiplexed. In this case, each communication destination has a different IP address, and the UE has multiple connections with communication destinations having different IP addresses. Each PDP-Type is Primary (default in LTE). In addition, one UE may perform a plurality of communications using a plurality of IP addresses in addition to a communication destination. Also in this case, the UE is multi-PDPs.

(B) PDPs based on mutually related services are multiplexed. For example, in a case where voice data is communicated using voice over internet protocol (VoIP), the UE exchanges control information (login, incoming call notification, and the like) with a session initiation protocol (SIP) server, and also exchanges voice data. In this case, the control information and the voice data are different PDPs, and are multi-PDPs. Here, in each PDP-Type, the control information is Primary (Default in LTE), and the voice data is secondary (Dedicated in LTE).

It should be noted that the VoIP is a technology for compressing voice by various encoding methods, converting the voice into packets, and transmitting the packets in real time through an IP network. Since LTE is a packet-switched communication system, a telephone call is performed by the VoIP.

The SIP is a session control protocol for performing operations such as starting, changing, and ending a session in two-way real-time communication such as a telephone or a videophone. The SIP server used for VoIP performs relay of communication between UEs.

The Status determination unit 13 b determines Status indicating a connection status. In the connection destination display unit 6 c to be described later, the connection status (the status where PDN or PDP is registered) and the disconnection status (the status of PDN or PDP) are controlled by the display control unit 5 based on the Status determined by the Status determination unit 13 b. As shown in FIG. 29, the two statuses (unregistered status) are distinguished and displayed by corresponding icons. The display is automatically switched by the measurement device 1A determining the status.

Here, the connection status is a status where an IP address is assigned, and the disconnection status is a status where an IP address is not assigned. Simply not communicating is not defined as a disconnection status. In the actual operation, even in a case where the wireless communication is cut off momentarily after entering the tunnel during the communication, the PDP registration is maintained, and the communication is resumed in a case where the wireless communication is restored. The disconnection status may occur due to spontaneous disconnection processing or a long timeout.

The PDN/PDP-Type determination unit 13 c determines a PDN-Type indicating the type of PDN and a PDP-Type indicating the type of PDP.

There are two types of PDN-Type: Default and Dedicated, and two types of PDP-Type: Primary and secondary.

Further, taking PDP-Type as an example, Primary is a PDP having an IP address, that is, a parent PDP. A plurality of Primary PDPs can exist.

The secondary is a PDP having no IP address, that is, a child PDP. The Primary PDP can exist alone, whereas the secondary PDP is subordinate to the Primary PDP. A plurality of secondary PDPs can be subordinate to one Primary PDP. In PDN-Type, Default corresponds to Primary and Dedicated corresponds to secondary.

The PDN/PDP-Type determination unit 13 c differs in the method of determining the value of PDN-Type or PDP-Type depending on whether the communication standard is LTE or GSM/W-CDMA.

That is, in a case where the communication standard is LTE and the terminal 11 a performs transmission, the terminal 11 a determines and notifies the PDN-Type, and the PDN/PDP-Type determination unit 13 c outputs the information to the display control unit 5. In a case where the communication standard is LTE and the measurement device 1A performs transmission, the tester operates the operation unit 2 to set the PDN-Type in advance through the PDN/PDP-Type determination unit 13 c. It should be noted that the PDN-Type can also be automatically set by the measurement device 1A.

In a case where the communication standard is GSM/W-CDMA and the terminal 11 a performs transmission, the terminal 11 a determines and notifies the PDP-Type, and the PDN/PDP-Type determination unit 13 c outputs the information to the display control unit 5. Further, in a case where the communication standard is GSM/W-CDMA and the measurement device 1A performs transmission, the PDN/PDP-Type determination unit 13 c responds to the notification of the Access-Point-Name from the measurement device 1A, the terminal 11 a notifies the PDP-Type and the NSAPI, and makes the determination on the basis of the information.

Then, in the multiplex-communication-related display unit 6 d, which will be described later, under the control of the display control unit 5 based on the PDN-Type or PDP-Type determined by the PDN/PDP-Type determination unit 13 c, for example, Default (Primary) or Dedicated (secondary) is displayed in a display form shown in FIG. 29, for example.

The IP-version determination unit 13 d determines an IP-version indicating the type of the IP. More specifically, in a case where the terminal 11 a performs transmission, the terminal 11 a determines and notifies the IP-version, and the IP-version determination unit 13 d outputs the information to the display control unit 5. On the other hand, in a case where the measurement device 1A performs transmission, the tester operates the operation unit 2 to set the IP-version in advance. It should be noted that the measurement device 1A can automatically set the IP-version.

Then, in the multiplex-communication-related display unit 6 d, which will be described later, under the control of the display control unit 5 based on the IP-version determined by the IP-version determination unit 13 d, for example, any one of IPv4, IPv6, and IPv4v6 in the display form shown in FIG. 29 is displayed.

It should be noted that IPv4v6 means dual stack. The dual stack is a technology that uses IPv4 and IPv6 coexistently, and one measurement device 1A can have both IPv4 and IPv6 addresses and mix both protocols.

The QCI determination unit 13 e determines a QCI that is an identification code indicating a class of a service associated with the service contents. This QCI is determined by the pseudo base transceiver station control unit 4 of the measurement device 1A. Therefore, the tester operates the operation unit 2 to perform the setting in advance in both a case where the terminal 11 a performs transmission and a case where the measurement device 1A performs transmission. It should be noted that the measurement device 1A can automatically set the QCI.

The EBI/NSAPI determination unit 13 f determines NSAPI, which is basic information for identifying the PDN and EBI, which is basic information for identifying the PDP, on the basis of the ID allocated to the PDN or PDP. EBI/NSAPI is referred to as EBI in LTE and NSAPI in GSM/W-CDMA.

The EBI/NSAPI determination unit 13 f differs in the method of determining the value depending on whether the communication standard is LTE or GSM/W-CDMA.

That is, in a case where the communication standard is LTE and the terminal 11 a performs transmission, the terminal 11 a determines and notifies the EBI, the EBI/NSAPI determination unit 13 f outputs the information to the display control unit 5. As an example, in the communication standard LTE, in a case where the terminal 11 a notifies EBI “5” of PDN1 (Default) and EBI “6” of PDN2 (Dedicated), the terminal 11 a outputs the information to the display control unit 5. In addition, in a case where the communication standard is LTE and the measurement device 1A performs transmission, the tester operates the operation unit 2 to set the EBI in advance through the EBI/NSAPI determination unit 13 f. It should be noted that the measurement device 1A can automatically set the EBI.

On the other hand, in a case where the communication standard is GSM/W-CDMA and the terminal 11 a performs transmission, the terminal 11 a determines and notifies the NSAPI, and the EBI/NSAPI determination unit 13 f outputs the information to the display control unit 5. As an example, in the communication standard GSM/W-CDMA, in a case where the terminal 11 a notifies the NSAPI “5” of PDN1 (Primary) and the NSAPI “6” of PDN2 (secondary), the information is output to the display control unit 5. In addition, in a case where the communication standard is GSM/W-CDMA and the measurement device 1A performs transmission, the tester operates the operation unit 2 to set the NSAPI in advance through the EBI/NSAPI determination unit 13 f. It should be noted that the measurement device 1A can automatically set NSAPI.

The Linked-EBI/Linked-NSAPI determination unit 13 g determines Linked-EBI/Linked-NSAPI on the basis of setting information obtained by operating the operation unit 2 or information (notification information) included in a packet for each service from the terminal 11 a. The Linked-EBI/Linked-NSAPI is subordinate relationship identification information that is allocated only to the secondary PDP (Dedicated PDN) and indicates the subordinate relationship to which Primary PDP (Default PDN).

The method of determining the value of Linked-EBI/Linked-NSAPI by the Linked-EBI/Linked-NSAPI determination unit 13 g differs depending on whether the communication standard is LTE or GSM/W-CDMA.

More specifically, in a case where the communication standard is LTE and the terminal 11 a performs transmission, the terminal 11 a determines and notifies Linked-EBI, and the Linked-EBI/Linked-NSAPI determination unit 13 g outputs the information to the display control unit 5. As an example, in the communication standard LTE, in a case where the terminal 11 a notifies of Linked-EBI “5” of PDN2 (Dedicated), the Linked-EBI “5” is output to the display control unit 5. In a case where the communication standard is LTE and the measurement device 1A performs transmission, the tester operates the operation unit 2 to set Linked-EBI in advance. It should be noted that the measurement device 1A can automatically set Linked-EBI.

On the other hand, in a case where the communication standard is GSM/W-CDMA and the terminal 11 a performs transmission, first, there is a notification for setting the Primary PDP, which includes values of NSAPI and a transaction identifier (TI: an identifier for identifying the processing (processing group)). Next, there is a notification for setting the secondary PDP, which includes the value of Linked-TI. Here, in a case where the value of the TI of the Primary PDP 1 and the value of the Linked-TI of the secondary PDP 2 are the same, the Primary PDP 1 and the secondary PDP 2 are in a parent-child relationship. Utilizing this, the Linked-EBI/Linked-NSAPI determination unit 13 g determines which Primary PDP the secondary PDP notified from the terminal 11 a is subordinate to, and determines the NSAPI value of the master Primary PDP is determined as the value of the Linked-TI of the slave secondary PDP. As an example, in the communication standard GSM/W-CDMA, since the value of the TI of the Primary PDP1 and the value of the Linked-TI of the secondary PDP2 are both “0” and the same value, it is determined that the Primary PDP1 and the secondary PDP2 have a parent-child relationship. Thus, the NSAPI value “5” of the master Primary PDP1 is determined as the Linked-NSAPI value “5” of the slave secondary PDP2.

In a case where the communication standard is GSM/W-CDMA and the measurement device 1A performs transmission, the tester operates the operation unit 2 to set Linked-NSAPI in advance. It should be noted that the measurement device 1A can automatically set Linked-NSAPI.

In this example, in the communication standard GSM/W-CDMA, the one corresponding to the Linked-EBI of the communication standard LTE is called Linked-NSAPI.

Then, in the multiplex-communication-related display unit 6 d to be described later, under the control of the display control unit 5 based on the Linked-EBI or the Linked-NSAPI determined by the Linked-EBI/Linked-NSAPI determination unit 13 g, the values of the master EBI and NSAPI are displayed in, for example, a display form shown in FIG. 29.

The UE-Address determination unit 13 h determines the UE-Address that is the IP address of the terminal 11 a as a test target. The pseudo base transceiver station control unit 4 of the measurement device 1A determines the IP address of the terminal 11 a. Therefore, the tester operates the operation unit 2 to perform the setting in advance in both a case where the terminal 11 a performs transmission and a case where the measurement device 1A performs transmission. It should be noted that the measurement device 1A can automatically set the IP address of the terminal 11 a.

The DNS-Address determination unit 13 i determines a DNS-Address, which is the address of a DNS server. The DNS-Address is set in advance by the tester operating the operation unit 2. It should be noted that the DNS-Address can be automatically set by the measurement device 1A.

The DNS server is a server that manages the association between a domain name and an IP address. The measurement device LA has a pseudo network function inside, and also simulates the DNS server. The “Primary/secondary” of DNS-Address means a main system and a sub system (two or more DNS servers are usually provided).

Then, in the multiplex-communication-related display unit 6 d to be described later, under the control of the display control unit 5 based on the DNS-Address determined by the DNS-Address determination unit 13 i, the DNS server address is displayed in, for example, a display form shown in FIG. 29.

The Access-Point-Name determination unit 13 j determines Access-Point-Name, which is the domain name of the communication carrier. The terminal 11 a such as a mobile phone, which performs communication under contract with a specific communication carrier, performs communication through the Access-Point of the communication carrier. The measurement device 1A has a pseudo network function inside, and also simulates the domain of the communication carrier.

In a case where the terminal 11 a performs transmission, the terminal 11 a determines and notifies the Access-Point-Name, and the Access-Point-Name determination unit 13 j outputs the information to the display control unit 5. In a case where the measurement device 1A performs transmission, the tester operates the operation unit 2 to set the Access-Point-Name in advance through the Access-Point-Name determination unit 13 j.

It should be noted that the measurement device 1A is able to automatically set Access-Point-Name. Actually, the tester who is a terminal developer knows what Access-Point-Name the terminal 11 a notifies, and sets the Access-Point-Name in the measurement device 1A.

In a case of measuring the terminal 11 a, the NR measurement-related information determination unit 13 k monitors a simulative communication operation in which the virtual NR network 12 d simulates base transceiver stations in the NR area and the LTE area with the terminal 11 a under the control of the pseudo base transceiver station control unit 4, and outputs various kinds of information, which are transmitted to and received from the terminal 11 a in the simulative communication operation, as NR measurement-related information to the display control unit 5.

In this example, the pseudo base transceiver station control unit 4 is described as an example in which a pre-LTE communication standard such as GSM/W-CDMA, LTE, and NR are multiplexed. It is also possible to adopt a configuration in which functions compliant with only LTE and NR are selected.

Further, in the present embodiment, the display unit 6 has an NR measurement-related display unit 6 e having a screen configuration different from the screen configuration shown in FIG. 29. The NR measurement-related display unit 6 e is a function unit that displays NR measurement-related information which is input from the NR measurement-related information determination unit 13 k, and displays a main screen 33 a (refer to FIGS. 9, 10, 11, and 12) relating to measurement of the terminal 11 a, which will be described later, and various screens of the lower hierarchy thereof, that is, a simulation model setting screen 33 b (refer to FIGS. 13, 14, and 15), a connection confirmation/support request screen (refer to FIG. 16), a DC operation confirmation screen (refer to FIGS. 17 and 18), and a test case view screen (refer to FIG. 19), a component confirmation screen (refer to FIGS. 20 and 21), a power characteristic confirmation screen 33 j (refer to FIG. 22), and a throughput confirmation screen 33 k (refer to FIG. 23). In the present embodiment, the display control unit 5 also controls the display of the NR measurement-related information to the NR measurement-related information determination unit 13 k.

Next, the display processing operation of the multiplex-communication-related information in the measurement device 1A configured as described above will be described with reference to the flowcharts of FIGS. 2 and 3. First, a display processing procedure in a case where the measurement device 1A performs transmission will be described with reference to a flowchart of FIG. 2.

Under the control of the pseudo base transceiver station control unit 4, the measurement device 1A transmits a packet from the transmitting/receiving unit 3 to the terminal 11 a (ST11). Then, the display control unit 5 acquires information, which is set in advance in the measurement device 1A through the operation input of the operation unit 2, from the information displayed on the display unit 6 through the pseudo base transceiver station control unit 4 (ST12). Subsequently, the measurement device 1A receives the packet transmitted by the terminal 11 a in response to the transmitting/receiving unit 3 (ST13). After that, in the measurement device 1A, the display control unit 5 acquires information, which is included in the packet from the terminal 11 a, from the information displayed on the display unit 6 through the pseudo base transceiver station control unit 4 (ST14). Next, in the measurement device 1A, the display control unit 5 acquires the information, which is determined by the display information determination unit 13 on the basis of the information included in the packet from the terminal 11 a, from the information displayed on the display unit 6 through the pseudo base transceiver station control unit 4. (ST15). Then, the display unit 6 displays the information acquired by the display control unit 5 in, for example, a display form shown in FIG. 29 (ST16).

Next, a display processing procedure in a case where the terminal 11 a performs transmission will be described with reference to a flowchart of FIG. 3.

In the measurement device 1A, in a case where the transmitting/receiving unit 3 receives the packet transmitted by the terminal 11 a under the control of the pseudo base transceiver station control unit 4 (ST21), the display control unit 5 acquires the information, which is included in the packet from the terminal 11 a, from the information displayed on the display unit 6 through the pseudo base transceiver station control unit 4 (ST22). Subsequently, the display control unit 5 of the measurement device 1A acquires information preset in the measurement device 1A from the information displayed on the display unit 6 through the pseudo base transceiver station control unit 4 (ST23). Next, in the measurement device 1A, the display control unit 5 acquires the information, which is determined by the display information determination unit 13 on the basis of the information included in the packet from the terminal 11 a, from the information displayed on the display unit 6 through the pseudo base transceiver station control unit 4. (ST24). Then, the display unit 6 displays the information acquired by the display control unit 5 in, for example, a display form shown in FIG. 29 (ST25).

It should be noted that it is also possible to adopt a configuration in which the operation unit 2, the transmitting/receiving unit 3, the pseudo base transceiver station control unit 4, the display control unit 5, and the display unit 6 are not integrated, but the measurement device includes the transmitting/receiving unit 3 and the measurement device is externally controlled by a control PC provided with the operation unit 2, the pseudo base transceiver station control unit 4, the display control unit 5, and the display unit 6.

Next, a measurement operation of the terminal 11 a in the measurement device 1A according to the present embodiment and a display processing procedure for displaying the NR measurement-related information relating to the measurement will be described. First, the measurement operation of the terminal 11 a will be described.

FIG. 4 is a diagram showing a connection configuration as a communication terminal measurement system 1B having the same functions as the measurement device 1A according to the present embodiment. In particular, the diagram shows an example of the following configuration. An NR measurement device 20 that simulates the communication function of the base transceiver station in the NR area of the non-standalone NR network, an LTE measurement device 21 that are configured separately from the NR measurement device 20 and that simulates a communication function of the base transceiver station in the LTE area of the non-standalone NR network, and a control device 22 that collectively controls the NR measurement device 20 and the LTE measurement device 21 are connected through the network 24. The NR measurement device 20 includes a first transmitting/receiving unit (for example, corresponding to the transmitting/receiving unit 3 that transmits and receives a signal of the NR communication standard in FIG. 1) that transmits and receives a signal between the NR base transceiver station and the terminal 11 a. The LTE measurement device 21 includes a second transmitting/receiving unit (for example, corresponding to the transmitting/receiving unit 3 that transmits and receives signals of the LTE communication standard in FIG. 1) that transmits and receives signals between the LTE base transceiver station and the terminal 11 a. In the communication terminal measurement system 1B of the present embodiment having such a connection mode, the control device 22 is also connected to an application server 23 as an external server through a network 24. The NR measurement device 20 and the LTE measurement device 21 form the communication terminal measurement apparatus of the present invention.

The NR measurement device 20 and the LTE measurement device 21 are connected to a measurement mechanism unit 25 including a holding mechanism that holds the terminal 11 a as a measurement target (refer to “UE” in FIG. 4). The measurement mechanism unit 25 is configured as follows. For example, the terminal 11 a as a measurement target and a measurement antenna (a transmission antenna and a reception antenna), which is capable of communicating with a not-shown antenna built in the terminal 11 a by a predetermined radio frequency signal, are accommodated in, for example, an over-the-air (OTA) chamber 25 a. In the frequency range of mmW, the NR measurement device 20 is connected to an antenna in the OTA chamber 25 a, and the LTE measurement device 21 is connected by wire to the terminal 11 a provided in the OTA chamber 25 a. Although not shown, in the frequency range of Sub6 GHz, the NR measurement device 20 and the LTE measurement device 21 are connected to the terminal 11 a through an RF Switching Box or the like in a wired manner.

The control device 22 functions as a control PC that controls the NR measurement device 20 and the LTE measurement device 21 with a computer device such as a personal computer (PC). The control device 22 has, for example, a control unit 31, an operation unit 32, and a display unit 33, as shown in FIG. 5. The control unit 31 has a CPU 31 a, a storage unit 31 b, and an external interface (I/F) unit 35. The CPU 31 a realizes, for example, a setting control unit 30 a, a simulative communication control unit 30 b, a measurement control unit 30 c, and a display control unit 30 d to be described later by executing a program stored in the storage unit 31 b. The operation unit 32 and the display unit 33 have the same configuration as the operation unit 2 and the display unit 6 described above. The external interface (I/F) unit 31 c performs an interface function for connecting the control device 22 to the NR measurement device 20 and the LTE measurement device 21 through the network 24.

In the control device 22, the CPU 31 a has a setting control unit 30 a, a simulative communication control unit 30 b, a measurement control unit 30 c, a display control unit 30 d, and a virtual connection destination 30 e.

The setting control unit 30 a performs setting of a scenario (including a base transceiver station as a simulative communication target) for measurement of the terminal 11 a and various kinds of setting processing of simulation parameters and the like. The simulative communication control unit 30 b performs a simulative communication operation. In the simulative communication operation, communication between the NR base transceiver station and the LTE base transceiver station and the terminal 11 a as a measurement target, for which a combination for performing simulative communication is set in advance, is simulated using the simulation parameters in accordance with the above-described scenario.

The measurement control unit 30 c acquires signals transmitted and received between the NR base transceiver station and the LTE base transceiver station and the terminal 11 a during the simulative communication operation, and performs control such that the measurement unit measures whether or not the terminal 11 a operates normally.

The display control unit 30 d performs display control for causing the display unit 33 to display measurement-related information (information for detecting a combination of base transceiver stations performing the simulative communication, the used carrier, and the like) relating to the measurement of the terminal 11 a based on signals transmitted and received between the terminal 11 a, the NR base transceiver station, and the LTE base transceiver station during the simulative communication operation, in association with the type of the radio access technology (RAT).

The setting control unit 30 a, the simulative communication control unit 30 b, and the measurement control unit 30 c of the control device 22 correspond to the pseudo base transceiver station control unit 4 in FIG. 1. The display control unit 30 d of the control device 22 corresponds to the display control unit 5 and the NR measurement-related display unit 6 e shown in FIG. 1. The virtual connection destination 30 e of the control device 22 corresponds to the virtual connection destination 12 in FIG. 1.

Further, in the connection configuration shown in FIG. 4, the control device 22, the NR measurement device 20, and the LTE measurement device 21 respectively constitute the control device of the present invention, the communication terminal measurement apparatus compliant with the first communication standard, and the communication terminal measurement apparatus compliant with the second communication standard.

Next, a display processing procedure for displaying the NR measurement-related information relating to the measurement of the terminal 11 a of the measurement device 1A according to the present embodiment will be described with reference to the flowcharts shown in FIGS. 6, 7, and 8. First, the display processing procedure of the terminal 11 a before the start of measurement (terminal measurement parameter setting stage) will be described with reference to the flowchart shown in FIG. 6.

In the measurement device 1A according to the present embodiment, it is necessary to set the number of RAT cells and the simulation parameters before the measurement of the terminal 11 a. In the measurement device 1A having the connection configuration shown in FIG. 4, in the control device 22, in a case where the measurement request of the terminal 11 a is input from the operation unit 32, the display control unit 30 d causes the display unit 33 to display, for example, the main screen 33 a having the screen configurations shown in FIGS. 11 and 12 (in which the simulation parameter display area 33 a 4 is not displayed) relating to the NR and LTE measurement (step S31).

In a state where the main screen 33 a is being displayed, the display control unit 30 d determines whether or not a RAT cell number setting request is input (step S32). Here, if it is determined that the RAT cell number setting request is not input (NO in step S32), the processing proceeds to step S37.

In contrast, if it is determined that the RAT cell number setting request is input (YES in step S32), then display control unit 30 d causes the display unit 33 to display a simulation model setting screen 33 b in the lower hierarchy of the main screen 33 a (Step S33). The simulation model setting screen 33 b has, for example, a simulation model setting area (RAT cell number setting screen) 33 b 1 (refer to FIG. 14) and a simulation model display area 33 b 2 (refer to FIG. 15), as shown in FIG. 13.

In a state where the simulation model setting screen 33 b is being displayed, the setting control unit 30 a executes a setting processing of the number of RAT cells and a simulation model setting confirmation processing on the basis of the input from the operation unit 32 (step S34).

Further, while executing the setting processing in step S34, the display control unit 30 d determines whether or not a simulation parameter setting request is input (step S35). The simulation parameter setting request can be made by, for example, selecting and operating either the tabs 41 a or 41 b provided on the right end portion of the main screen 33 b. If it is determined that the simulation parameter setting request is not input (NO in step S35), the processing proceeds to step S37.

In contrast, if it is determined that the simulation parameter setting request is input (YES in step S35), the display control unit 30 d, for example, displays a simulation parameter display area 33 a 4 (the display area of the simulation parameter setting screen 33 c) on the main screen 33 a (refer to FIGS. 9 and 10), and the setting control unit 30 a executes simulation parameter setting processing while receiving an operation input from the operation unit 32 on the simulation parameter setting screen 33 c (step S36). In the simulation parameter display area 33 a 4 displayed on the main screen 33 a at the time of this setting processing, a simulation parameter setting screen 33 c 1 (refer to FIG. 9) or the simulation parameter setting screen 33 c 2 (refer to FIG. 10) is displayed depending on whether the request for setting the simulation parameters is made by selecting the tab 41 a or the tab 41 b.

During the display processing of the simulation parameter setting screen 33 c 1 or 33 c 2 in step S36 or after the display processing is completed, for example, in a state where the display is returned to the display of the main screen 33 a, the display control unit 30 d determines whether or not a setting confirmation request for issuing an instruction to confirm the setting contents is input (step S37). Here, if it is determined that the setting confirmation request is not input (NO in step S37), the processing proceeds to step S39.

In contrast, if it is determined that the setting confirmation request is input (YES in step S37), the display control unit 30 d causes the display unit 33 to display a setting confirmation screen corresponding to the request contents (step S38).

Regarding the processing in steps S37 and S38 described above, in a case where the simulation setting confirmation request is input in step S37, the display control unit 30 d displays, for example, a simulation model setting area (RAT cell number setting screen) 33 b 1 as shown in FIG. 14 and a simulation model setting screen 33 b (refer to FIG. 13) having a screen configuration including a simulation model display area 33 b 2 as shown in FIG. 15, in step S38. Further, in a case where the connection parameter confirmation request is input in step S37, the display control unit 30 d displays, for example, a connection parameter confirmation screen 33 a 5 having the screen configuration shown in FIG. 11 or 12 in accordance with an operation of pressing the base transceiver station selection toolbar 45 and the display command toolbar 47, which will be described later, in step S38. In a case where a connection confirmation/support request is input in step S37, the display control unit 30 d displays a connection confirmation/support request screen 33 d having a screen configuration shown in FIG. 16, for example, in step S38.

In a state where the various setting confirmation screens are being displayed in step S38, the display control unit 30 d determines whether or not an end request for issuing an instruction to end the processing is input (step S39). If it is determined that the end request is not input (NO in step S39), the display control unit 30 d returns to step S31 in accordance with the instruction to return the processing, and continues the processing after step S31 on the display of the main screen 33 a.

In contrast, if it is determined that the end request is input (YES in step S39), the display control unit 30 d ends the above-described series of display control in the terminal measurement parameter setting stage.

Next, the display forms of the main screen 33 a (refer to FIGS. 9 to 12) displayed in each step relating to the series of display control shown in FIG. 6, the simulation parameter setting screens 33 c 1 and 33 c 2 (refer to FIGS. 9 and 10), the connection parameter confirmation screen 33 a 5 (refer to FIGS. 11 and 12), the simulation model setting screen 33 b (refer to FIGS. 13, 14, and 15), and the connection confirmation/support request screen 33 d (refer to FIG. 12) will be described in more detail.

As shown in FIGS. 9 and 10, the main screen 33 a displayed in step S31 in FIG. 6 has a sequence display area 33 a 1, a connection status display area 33 a 2, a PDN information display area 33 a 3, and a simulation parameter display area 33 a 4. Further, the main screen 33 a is provided with tabs 41 a and 41 b for identifying the communication standard, for example, at the right end portion of the screen.

The tabs 41 a and 41 b are tabs (operation tool) for selecting a communication standard used for displaying a simulation parameter setting screen 33 c 1 (refer to FIG. 9) compliant with NR and a simulation parameter setting screen 33 c 2 (refer to FIG. 10) compliant with LTE, respectively. The tabs 41 a and 41 b are provided one by one corresponding to the NR which is the first communication standard or the LTE which is the second communication standard according to the present embodiment, and are not provided respectively corresponding to the base transceiver stations in a similar manner to the base transceiver station identification tabs 40 (refer to FIGS. 31 to 33).

In the main screen 33 a shown in FIGS. 9 and 10, the sequence display area 33 a 1 has a function equivalent to that of the sequence display unit 6 a in the configuration of the display unit 6 shown in FIG. 29. The sequence display area 33 a 1 is an area for displaying which sequence status the terminal 11 a as a measurement target is in. The sequence status is any of “Power Off”, “Detach (position Registration), “Registration (position registration)”, “Idle (standby status)”, “Origination (outgoing)”, “Termination (incoming)”, “Communication (communication status)”, “UE (user equipment) Release (terminal disconnection)”, “NW (network) Release (connection destination disconnection)”, “Handover”, and the like.

The connection status display area 33 a 2 is an area in which the connection status between the terminal 11 a and the virtual connection destination (non-standalone NR) through the measurement device 1A is displayed. The connection status display area 33 a 2 does not display the connection status in a case where the number of RAT cells is not set. On the other hand, after the setting of the number of RAT cells is performed, a connection status according to the setting contents is displayed. The connection status is displayed as an image which indicates the connection status of both cells by using an NR cell icon indicating an NR base transceiver station cell (hereinafter, NR cell) corresponding to a set cell in the NR area, and an LTE cell icon indicating an LTE base transceiver station cell (hereinafter, LTE cell) corresponding to a set cell in the LTE area.

The PDN information display area 33 a 3 is an area for displaying information relating to packet communication (for example, voice call) performed by the terminal 11 a via a plurality of (for example, eight types at maximum) PDNs (packet data networks) as a connection destination of the network after the terminal 11 a to be measured is connected to the network via the base transceiver station.

The simulation parameter display area 33 a 4 is a display area as the simulation parameter setting screen for setting simulation parameters for the set NR and LTE cells after setting of the number of RAT cells. The simulation parameter setting screen includes, for example, a simulation parameter setting screen 33 c 1 having a display mode shown in FIG. 9 used in a case of setting simulation parameters for the NR base transceiver station (NR cell), and for example, a simulation parameter setting screen 33 c 2 having a display mode shown in FIG. 10 used in a case of setting simulation parameters for LTE cells. The simulation parameter setting screens 33 c 1 and 33 c 2 respectively correspond to the first simulation parameter display area and the second simulation parameter display area of the present invention.

The simulation parameter setting screen 33 c 1 (refer to FIG. 9) can be displayed by, for example, selecting (clicking) the tab 41 a of the tabs 41 a and 41 b provided on the main screen 33 a. On the other hand, the simulation parameter setting screen 33 c 2 shown in FIG. 10 can be displayed by clicking the other tab 41 b.

The configuration of the simulation parameter setting screens 33 c 1 and 33 c 2 will be described in more detail with reference to FIGS. 9 and 10. In FIG. 9, the simulation parameter setting screen 33 c 1 has a screen configuration in which one setting item field 43 and a plurality of base transceiver station identification fields 44 are arranged in a horizontal row from the left end of the screen to the right end of the screen. The setting item field 43 has a configuration in which a plurality of setting items relating to the simulation parameters are vertically arranged, and each base transceiver station identification field 44 has a configuration in which setting fields corresponding to the plurality of setting items are vertically arranged. It should be noted that the number of base transceiver station identification fields 44 corresponds to the number of base transceiver stations for the same communication standard (NR in the example of FIG. 9). That is, the base transceiver station identification field 44 has a configuration in which the base transceiver station identification fields 44 a, 44 b, 44 c, 44 d, . . . compliant with the NR base transceiver stations numbered 1 to N are arranged side by side.

On the simulation parameter setting screen 33 c 1 having the above screen configuration, it is possible to set and confirm the simulation parameters for each setting item in the setting item field 43 for the NR base transceiver stations numbered 1 to N.

Similarly, the simulation parameter setting screen 33 c 2 shown in FIG. 10 has a screen configuration in which one setting item field 43 and a plurality of base transceiver station identification fields 44 are arranged in a horizontal row from the left end of the screen to the right end of the screen. Here, the base transceiver station identification field 44 has a configuration in which the base transceiver station identification fields 44 a, 44 b, and 44 c, . . . corresponding to the base transceiver stations (LTE base transceiver stations) numbered from 1 to N of the same communication standard (LTE in the example of FIG. 10) are arranged side by side. On the simulation parameter setting screen 33 c 2 having the above screen configuration, it is possible to set and confirm the simulation parameters for each setting item in the setting item field 43 for the LTE base transceiver stations numbered 1 to N.

In the simulation parameter setting screen 33 c 1 shown in FIG. 9, the setting items in the setting item field 43 are roughly common items (“Common”) common to NR and LTE and specific items (“NR”) specific to NR. The common items include, for example, TemplateCell, Cell Name, TRx Ref point, DL Ref Power, UE Rx Power, DL Pathloss, UL RefPower, UE Tx Power, UL Pathloss, MCC, MNC, Call Identity, E-PLMN List, EmergencyNumber List, Cell Barred, Access Class Barred, and the like.

The specific items include RS EPRE, Uplink Target Power Density, Duplex Mode, NR Band, Channel(DL), Frequency(DL), Reference Point A(DL), Channel(UL), Frequency(UL), Reference Point A(UL), DL Subcarrier Spacing, UL Subcarrier Spacing, DL BandWidth, UL BandWidth, TDD Configuration, Reference Subcarrier Spacing, DL/UL Periodicity, Number of DL Slots, Number of UL Slots, Number of DL Symbols, Number of UL Symbols, TDD Configuration Dedicated, Mode, Slot List, and the like.

Similarly, in the simulation parameter setting screen 33 c 2 shown in FIG. 10, the setting items in the setting item field 43 are roughly common items (“Common”) of NR and LTE and specific items (“LTE”) specific to LTE. The common items include, for example, Template Cell, Cell Name, TRx Ref point, DL Ref Power, UE Rx Power, DL Pathloss, ULRef Power, UE Tx Power, UL Pathloss, MCC, MNC, Call Identity, IMS Emergency Support, E-PLMN List, Emergency Number List, Cell Barred, Access Class Barred, LTEAccess Class Barred, and the like.

The specific items include RS EPRE, Uplink Target Power Density, MME Group ID, MME Code, TAC, Duplex Mode, E-UTRA Band, Channel(DL), Frequency(DL), Channel(UL), Frequency(UL), DL BandWidth, UL BandWidth, Number of DL Antennas, Transmission Mode, DL Modulation Order, UL Modulation Order, Physical Cell ID, PHICH Resouce, CFI, UL/DL Configuration, Special Subframe Configuration, and the like.

In a state where the simulation parameter setting screen 33 c 1 shown in FIG. 9 is displayed, a user is able to set desired values (simulation parameter values), which are for the setting items of the common item and the specific item described above for each of the NR base transceiver stations corresponding to the base transceiver station identification fields 44 a, 44 b, 44 c, . . . , to the base transceiver station identification fields 44 a, 44 b, 44 c, The setting operation at that time can be performed, for example, by inputting the desired setting values from the operation unit 32.

Similarly, in a state where the simulation parameter setting screen 33 c 2 shown in FIG. 10 is displayed, a user is able to set desired values, which are for the setting items of the common item and the specific item described above for each of the LTE base transceiver stations corresponding to the base transceiver station identification fields 44 a, 44 b, 44 c, . . . , to the base transceiver station identification fields 44 a, 44 b, 44 c, . . . .

The simulation parameter setting screens 33 c 1 and 33 c 2 having the screen configurations shown in FIGS. 9 and 10 are displayed (opened) in the connection status display area 33 a 2 of the main screen 33 a by clicking the tab 41 a or the tab 41 b as described above. On the other hand, the simulation parameter setting screens 33 c 1 and 33 c 2 are hidden (closed) by performing a predetermined non-display selection operation (for example, clicking the tab 41 a or 41 b again).

The simulation parameter setting screens 33 c 1 and 33 c 2 are opened in the connection status display area 33 a 2 of the main screen 33 a, and in the same screen, a simulation model setting screen 33 b (refer to FIGS. 13, 14, and 15) described later is used to display the preset setting contents in an array in the setting fields of the base transceiver station identification fields 44 a, 44 b, 44 c, . . . of the respective NR base transceiver stations or the respective LTE base transceiver stations. That is, in the present embodiment, the setting and confirmation of the setting of the simulation parameters for all the set NR base transceiver stations or LTE base transceiver stations can be performed through the selection operation of the tab 41 a or the tab 41 b.

Based on the configuration of the main screen 33 a shown in FIGS. 9 and 10, the details of the simulation parameter setting processing in step S36 of FIG. 6 will be described with reference to the flowchart shown in FIG. 7.

The simulation parameter setting processing shown in FIG. 7 is started by receiving a selection operation of the tab 41 a or the tab 41 b while the main screen 33 a is displayed. In a case where the selection operation of the tab 41 a or the tab 41 b is received (step S36 a), the display control unit 30 first checks which of the tab 41 a or the tab 41 b is selected, and from the result of check, it is determined whether the selected communication standard is NR or LTE (step S36 b).

If it is determined that the communication standard selected here is NR (“NR” in step S36 b), the display control unit 30 displays the simulation parameter setting screen 33 c 1 for NR (refer to FIG. 9) on the main screen 33 a (step S36 c).

Next, the setting control unit 30 a receives an input of a setting value of the simulation parameter for the NR from a user on the displayed simulation parameter setting screen 33 c 1 for each setting item, and the setting value is set in each corresponding setting field. Then, the simulation parameter setting processing is executed (step S36 e).

On the other hand, if it is determined that the communication standard selected in step S36 b is LTE (“LTE” in step S36 b), the display control unit 30 displays the simulation parameter setting screen 33 c 2 for LTE (refer to FIG. 10) on the main screen 33 a (step S36 d). Next, the setting control unit 30 a receives an input of a setting value of the simulation parameter for the LTE from a user on the displayed simulation parameter setting screen 33 c 2 for each setting item. Then, the simulation parameter setting processing is executed (step S36 e).

During execution of the NR or LTE simulation parameter setting processing in step S36 e, the display control unit 30 determines whether or not there is an instruction (the above-described non-display selection operation) to end the simulation parameter setting (step S36 f). If it is determined that there is no instruction to end the simulation parameter setting (NO in step S36 f), the setting control unit 30 a continuously executes the simulation parameter setting processing of NR or LTE (step S36 e).

On the other hand, if it is determined that there is instruction to end the simulation parameter setting (YES in step S36 f), the display control unit 30 d hides the NR simulation parameter setting screen 33 c 1 being displayed or the simulation parameter setting screen 33 c 2 for LTE (step S36 g), and a series of simulation parameter setting processing ends.

According to the simulation parameter setting processing in FIG. 7, on the simulation parameter setting screen 33 c 1 or the simulation parameter setting screen 33 c 2 which is displayed in accordance with the selection of the tab 41 a or 41 b, the simulation parameter setting fields of the NR base transceiver station or the LTE base transceiver station are displayed in array. As a result, a user is able to receive inputs of new setting values while confirming the setting contents of another NR base transceiver station or the LTE base transceiver station on the same screen in a state where the simulation parameter setting screen 33 c 1 or the simulation parameter setting screen 33 c 2 is being displayed.

Next, the configuration of the main screen 33 a in a case where the simulation parameter setting screens 33 c 1 and 33 c 2 are hidden (non-display case) will be described. FIG. 11 is a diagram showing a screen configuration of the main screen 33 a in a case where the simulation parameter setting screen 33 c 1 is closed, and FIG. 12 shows a screen configuration of the main screen 33 a in a case where the simulation parameter setting screen 33 c 2 is closed.

As shown in FIGS. 11 and 12, on the main screen 33 a, the entire connection status display area 33 a 2 is displayed in a case where the simulation parameter setting screens 33 c 1 and 33 c 2 are closed.

At the top of the connection status display area 33 a 2 in the main screen 33 a shown in FIGS. 11 and 12, one base transceiver station selection toolbar 45 and one display command toolbar 47 are provided so as to extend horizontally and be arranged vertically on the screen. The base transceiver station selection toolbar 45 has a plurality of base transceiver station selection tabs 46 for individually specifying optional NR base transceiver stations or LTE base transceiver stations which are set at that time as connection confirmation destinations. In this example, as the base transceiver station selection tabs 46, there are provided four NR base transceiver station selection tabs 46 a, 46 b, 46 c, and 46 d respectively corresponding to the NR base transceiver stations having the identification information “NR1”, “NR2”, “NR3”, and “NR4” and three LTE base transceiver station selection tabs 46 e, 46 f, and 46 g respectively corresponding to the LTE base transceiver stations having the identification information of “LTE1”, “LTE2”, and “LTE3”.

The base transceiver station selection toolbar 45 is configured such that the NR base transceiver station or the LTE base transceiver station corresponding to the pressed base transceiver station selection tab 46 can be specified (selected) as the connection confirmation destination by pressing one of the base transceiver station selection tabs 46 a, 46 b, 46 c, 46 d, 46 e, 46 f, and 46 g.

The base transceiver station selection toolbar 45 is not limited to having seven base transceiver station selection tabs 46, and may have six or more base transceiver stations or a number less than six. Also, the distribution of the numbers for NR and LTE can be set optionally.

The display command toolbar 47 is a tool for inputting a command for displaying the connection parameters of the connection confirmation destination (NR base transceiver station or LTE base transceiver station) selected by the base transceiver station selection toolbar 45.

According to the main screen 33 a having the above screen configuration, a user presses the desired base transceiver station selection tab 46 of the base transceiver station selection toolbar 45 and then presses the display command toolbar 47. In such a manner, the connection parameters of connection between the NR base transceiver station or the LTE base transceiver station corresponding to the pressed base transceiver station selection tab 46 and the mobile communication terminal (terminal 11 a) can be displayed as an image in the connection status display area 33 a 2.

In FIG. 11 as an example, the NR base transceiver station identified by “NR1” is specified as the connection confirmation destination. Therefore, the connection parameter confirmation screen 33 a 5 is ensured in the upper left area of the connection status display area 33 a 2. In the connection parameter confirmation screen 33 a 5, connection parameters of connection between the NR base transceiver station and the object (indicated by the symbol “UE” in the drawing and corresponds to the terminal 11 a) under test at this time are displayed as an image.

Further, in FIG. 12 as an example, by selecting the LTE base transceiver station identified by “LTE1”, the connection parameter confirmation screen 33 a 5 is ensured in the upper left area of the connection status display area 33 a 2. In the connection parameter confirmation screen 33 a 5, the connection parameters of connection between the LTE base transceiver station and the terminal 11 a at this time are displayed as an image.

In FIGS. 11 and 12, examples of connection parameters displayed in the connection parameter confirmation screen 33 a 5 include wireless transmission/reception power (output), transmission speeds of transmission and reception packets, and the like at the terminal 11 a.

Similarly, in a case where the NR base transceiver station identified by “NR2”, “NR3”, or “NR4” in FIGS. 11 and 12 is specified as the connection confirmation destination, or in a case where the LTE base transceiver station identified by “LTE1”, “LTE2”, or “LTE3” is specified as the connection confirmation destination, the connection parameters of connection between the NR base transceiver station or the LTE base transceiver station and the terminal 11 a at this time can be displayed in an image in the connection parameter confirmation screen 33 a 5 of the connection status display area 33 a 2.

In the conventional connection parameter display mode shown in FIGS. 32 and 33, two or more operation toolbars 48 may be selected, and the connection parameter display areas 49 displayed in accordance with the selection may occupy the entire connection status display area 33 m 2. In that case, the screen is very difficult to view, and a user may not view what the user wants to view. In addition, in order to confirm the connection parameters with the mobile communication terminal in the base transceiver station after setting the simulation parameters, the same number of operation toolbars 48 as the number of set base transceiver stations are displayed in a line in the vertical direction. Since the connection parameter display areas 49 of the corresponding base transceiver stations are displayed in accordance with the selection of the operation toolbars 48, the connection parameter display areas 49 corresponding to the selected operation toolbars 48 are multiply displayed in multiple stages. Thus, the connection status display area 33 m 2 is complex, and it is difficult to view the screen, thereby making it difficult to confirm the connection parameters.

On the other hand, in the present embodiment shown in FIGS. 11 and 12, in the main screen 33 a in a state where the simulation parameter setting screens 33 c 1 and 33 c 2 are closed, it is possible to confirm, on the connection parameter confirmation screen 33 a 5, connection parameters of connection between the terminal 11 a and all the base transceiver stations (respectively identified by “NR1”, “NR2”, “NR3”, “NR4”, “LTE1”, “LTE2”, and “LTE3”) respectively corresponding to the base transceiver station selection tabs 46, which are selected through the selection operation of the plurality of base transceiver station selection tabs 46 (46 a, 46 b, 46 c, 46 d, 46 e, 46 f, and 46 g) on the base transceiver station selection toolbar 45. Therefore, it is possible to prevent the screen from being covered with toolbars and being difficult to view, as in a conventional system having the number of toolbars corresponding to the number of base transceiver stations and displaying connection parameters of a plurality of base transceiver stations. As a result, it is possible to make the operation of confirming the connection parameters easy.

The main screen 33 a having the above configuration is displayed on the display unit 33 through the display control of the display control unit 30 d (refer to step S31 in FIG. 6). At this time, in a case where the number of RAT cells is set in advance, the display control unit 30 d displays the connection status of the selected base transceiver stations (cells) in the connection status display area 33 a 2 of the main screen 33 a in, for example, a form shown in FIG. 9 or 10, in accordance with the selection of the base transceiver station selection tabs 46 described above.

Here, the display control unit 30 d displays one NR cell icon (first cell icon) indicating that the base transceiver station (NR cell) is compliant with the NR communication standard and one LTE cell icon (second cell icon) indicating that the base transceiver station is compliant with the LTE communication standard. The display control unit 30 d performs the display such that the same number of figures as the number of base transceiver stations compliant with the NR communication standard are arranged in a line in association with the NR cell icon, and performs the display such that the same number of figures as the number of base transceiver stations compliant with the LTE communication standard are arranged in a line in association with the LTE cell icon.

The display control unit 30 d displays rectangular frames as the figures, and displays a number for identifying a number for identifying the base transceiver station compliant with the NR communication standard and the base transceiver station compliant with the LTE communication standard for each of the rectangular frames. The figure may show a box shape of which one surface is the rectangular frame, and the figure may be displayed in a vertically stacked form.

Specifically, in the example of FIG. 9 or 10, the display control unit 30 d displays the connection status in the NR area, in the connection status in the NR area and the cell connection status in the LTE area displayed in the connection status display area 33 a 2, in a form in which the number of box shapes (the box shape of which one surface is the rectangular frame) corresponding to the NR cells in the NR area relating to the measurement of the terminal 11 a are vertically stacked to be adjacent to one NR cell icon indicating a base transceiver station (NR cell) in the NR area. In this example, since two NR cells are set, the image is displayed as an image in which two box shapes are vertically stacked. In each box-shaped rectangular frame, a numerical value indicating the base transceiver station number of the NR cell is noted. The NR cell icon is represented by the reference sign of “NR” indicating the area type.

In addition, the display control unit 30 d displays the connection status in the LTE area in a form in which the number of box shapes corresponding to the LTE cells in the LTE area relating to the measurement of the terminal 11 a are vertically stacked to be adjacent to one LTE cell icon indicating a base transceiver station (LTE cell) in the LTE area. In this example, since three LTE cells are set, three LTE cells are displayed as an image in which the cells are vertically stacked. In each box-shaped rectangular frame, a numerical value indicating the base transceiver station number of the LTE cell is noted. The LTE cell icon is represented by “L” as the reference sign of LTE indicating the area type.

According to the display form shown in FIG. 9 or 10 of the set connection status relating to the NR cell and the LTE cell, even in a case where the number of cells which are set in the NR area and the LTE area increases, the NR cell icon and the LTE cell icon does not increase. In addition, the area for displaying the rectangular frame in each area does not expand. Further, the area for displaying the rectangular frame in each area may be expanded vertically as the number of layers of the rectangular frame increases, but the expansion can be suppressed as compared with the case where cell icons indicating the shapes of the base transceiver stations are stacked. Further, a form in which rectangular frames are arranged horizontally or vertically above or below a cell icon may be used. Further, the number of lines is not limited to one, and a plurality of lines may be used.

FIGS. 9 and 10 each show an example in which the number of rectangular frames corresponding to the number of base transceiver stations in the NR area and the number of rectangular frames corresponding to the number of base transceiver stations in the LTE area are respectively displayed in association with the NR cell icon and the LTE cell icon. However, instead of the rectangular frame, various graphic forms may be displayed in a form in which the graphic forms are vertically stacked or horizontally arranged.

As described above, in the measurement device 1A according to the present embodiment, the display control unit 30 d performs control to display all cells (NR and LTE cells), which are in the NR area and LTE area involved in the measurement of the terminal 11 a, in a display area with a predetermined size. The number of cells varies in accordance with the scenario (setting of the combination of cells subjected to simulative communication operation) for simulating the communication of the NR communication standard.

The simulation model setting screen 33 b (refer to FIG. 13) displayed in step S33 of FIG. 6 includes, for example, a RAT cell number setting screen (RAT cell number setting area) 33 b 1 showing the enlarged screen configuration in FIG. 14. The display control unit 30 d is able to display the simulation model setting screen 33 b including the RAT cell number setting screen 33 b 1 on the basis of a simulation model setting request operation using a tab (GUI tool) on the main screen 33 a.

In the measurement device according to the present embodiment, the display control unit 30 d displays the RAT cell number setting screen 33 b 1 on the simulation model setting screen 33 b as an image in which a tool for selecting the number of cells for each RAT type NR or LTE is set as shown in FIGS. 13 and 14. Specifically, the display control unit 30 d displays the RAT cell number setting screen 33 b 1 with a screen configuration including a RAT field 35 a and a cell field 35 b. In the RAT field 35 a, a single NR cell icon indicating that the radio access technology (RAT; area type) is NR and a single LTE cell icon indicating that the RAT is LTE are arranged side by side. In the cell field 35 b, a cell number selection tool for selecting the number of cells for each RAT in accordance with the scenario is provided at each of positions respectively compliant with the NR cell icon and the LTE cell icon.

In the display forms shown in FIGS. 13 and 14, RAT name fields 35 c are provided at positions vertically opposite to the respective cell number selection tools with the NR cell icon and the LTE cell icon interposed therebetween. In the RAT name fields 35 c, RAT names “NR” and “LTE” compliant with the NR cell icon and the LTE cell icon are noted in vertical writing, respectively.

In the present embodiment, the RAT cell number setting screen 33 b 1 of the simulation model setting screen 33 b has the RAT field 35 a, the cell field 35 b and the RAT name fields 35 c as shown in FIG. 14, and is configured such that the number of cells of the corresponding RAT is selected by operating the cell number selection tool in the cell fields 35 b. According to this configuration, it is not necessary to extend the display area even in a case where the number of cells increases. In addition, since the screen configuration is simple, it is easy to view the screen, and the number of cells can be easily set.

In the simulation model setting screen 33 b (refer to FIG. 13), in addition to the above-described RAT cell number setting screen 33 b 1 (refer to FIG. 14), for example, a simulation model display area 33 b 2 showing the enlarged screen configuration in FIG. 15 is also provided.

In the measurement device 1A according to the present embodiment, as shown in FIG. 15, the display control unit 30 d displays the simulation model display area 33 b 2 with a screen configuration in which display areas 35 d and 35 e respectively compliant with NR and LTE are provided. Then, for the simulation model display area 33 b 2 having the above screen configuration, the display control unit 30 d performs display as follows. In the display area 35 d compliant with the NR, one NR cell icon is displayed in a form in which a numerical value corresponding to the number of cells which are set in the NR area is attached thereto. In the display area 35 e compliant with LTE, one LTE cell icon is displayed in a form in which a numerical value corresponding to the number of cells which are set in the LTE is attached thereto.

FIG. 15 shows a display form in a case where one NR cell and three LTE cells are selected and set. In this case, for the display area 35 d, the display control unit 30 d performs the display in a form in which a symbol “×1” indicating that the number of NR cells is 1 is attached to the NR cell icon having an abbreviation symbol “N” compliant with NR noted therein. In addition, for the display area 35 e, the display control unit 30 d performs the display in a form in which a symbol “×3” indicating that the number of LTE cells is 3 is attached to the LTE cell icon having an abbreviation symbol “L” compliant with LTE noted therein.

As described above, the display control unit 30 d displays one NR cell icon (first cell icon) and one LTE cell icon (second cell icon) respectively compliant with NR and LTE, and further displays a simulation model display area 33 b 2 having display areas 35 d and 35 e respectively compliant with the NR base transceiver station and the LTE base transceiver station. In the display area 35 d, a form, in which a numerical value corresponding to the number of NR base transceiver stations is attached to one NR cell icon, is displayed. In the display area 35 e, a form, in which a numerical value corresponding to the number of LTE base transceiver stations is attached to one LTE cell icon, is displayed.

In the present embodiment, as shown in FIG. 15, the simulation model is displayed in the simulation model display area 33 b 2 in a form in which one icon and the number of cells (numerical value) are combined for each of NR and LTE RAT. Therefore, even in a case where the number of NR and LTE cells increases, all cells can be detected.

In the present embodiment, the simulation model setting screen 33 b has the RAT cell number setting area 33 b 1 (RAT cell number setting screen) and the simulation model display area 33 b 2. Therefore, a user is able to set the simulation model while confirming the simulation model on the simulation model setting screen 33 b.

The simulation parameter setting screen used in the simulation parameter setting in step S36 of FIG. 6 includes, for example, a simulation parameter setting screen 33 c 1 shown in FIG. 9 and a simulation parameter setting screen 33 c 2 shown in FIG. 10. Each screen can be displayed as the simulation parameter display area 33 a 4 on the main screen 33 a by selecting (clicking) the tab 41 a or the tab 41 b of the main screen 33 a. A user is able to set the above-mentioned various parameters for NR or LTE by using the simulation parameter setting screens 33 c 1 and 33 c 2.

FIG. 16 shows an example of the connection confirmation/support request screen 33 d displayed in step S38 in a case where the connection confirmation/support request is input in step S37 of FIG. 6. FIG. 16 shows an example of the connection confirmation/support request screen 33 d displayed on the display unit 33 by the control device 22 particularly in a case where the NR measurement device 20 and the LTE measurement device 21 are connected and operated in the connection mode shown in FIG. 4.

As shown in FIG. 16, the connection confirmation/support request screen 33 d has a screen configuration in which a first connection diagram image 33 d 1 and a second connection diagram image 33 d 2 are displayed to be adjacent to each other. The first connection diagram image 33 d 1 is an image which indicates the exterior structure of the front panel and the rear panel of the NR measurement device 20 and in which the front panel and rear panel are switchable. The second connection diagram image 33 d 2 is an image which indicates the exterior structure of the front panel and the rear panel of the LTE measurement device 21 and in which the front panel and rear panel are switchable.

The connection confirmation/support request screen 33 d is configured to display a connection mode for the connection destination of the connection terminal in a form in which the connection destination names of the connection terminals are noted so as to correspond to the images of the respective connection terminals on the front panel and the rear panel of the first connection diagram image 33 d 1 and the second connection diagram image 33 d 2.

The display control unit 30 d of the control device 22 is configured to display an image that functions as a connection diagram by attaching connection destination names changed in accordance with the setting contents (scenario) of the parameters and the simulation set in step S36 in FIG. 6 to the images of the respective connection terminals on the front panel and the rear panel of the first connection diagram image 33 d 1 and the second connection diagram image 33 d 2.

In the example of FIG. 16, destination names such as BTS1 Ant #1 Tx/Rx and BTS2 Ant #1 Tx/Rx are attached to the images of the respective connection terminals on the rear panel (also the front panel) of the first connection diagram image 33 d 1. In addition, destination names such as LTE1 Ant #1 Tx/Rx˜LTE3 Ant #1 Tx/Rx and LTE1 Ant #2 Tx˜LTE3 Ant #2 Tx are attached to the images of the respective connection terminals on the front panel (also the rear panel) of the second connection diagram image 33 d 2. The display contents of the connection confirmation/support request screen 33 d function as a connection diagram including the connection mode for connection between the NR measurement device 20 and the LTE measurement device 21 and the measurement antennas (NR and LTE antennas) corresponding to the antennas of the terminal 11 a as a measurement target.

As described above, the display control unit 30 d has a function of displaying the connection diagram including at least a connection mode for connection between the NR measurement device 20 and the LTE measurement device 21 and the measurement antennas corresponding to the antennas of the terminal 11 a as a measurement target.

In the example of FIG. 16, the images of the respective connection terminals (different from the connection terminals described above) on the rear panel of the first connection diagram image 33 d 1 are displayed as follows. The connection destination names such as Ethernet and Sync Output are attached thereto so as to indicate a connection mode for connection between the LTE measurement device 21 corresponding to the second connection diagram image. The connection destination name such as Control is attached thereto so as to indicate a connection mode for connection between the NR measurement device 20 and the LTE measurement device 21 and the control device 22. Therefore, the display control unit 30 d also has the function of displaying the connection diagram further including the connection mode for connection between the NR measurement device 20 and the LTE measurement device 21 and the connection mode for connection between the NR measurement device 20 and the LTE measurement device 21 and the control device 22.

In the present embodiment, since the connection diagram has the display form shown in FIG. 16, the connection mode can be easily detected, and the connection operation can be easily and promptly performed.

Next, a display processing procedure in a stage of execution of the measurement of the terminal 11 a will be described with reference to a flowchart shown in FIG. 8.

In the measurement device 1A having the connection configuration shown in FIG. 4, after the control device 22 completes the processing of setting the number of RAT cells, setting and confirming the simulation model, and setting the simulation parameters (refer to S34 to S36 in FIG. 6). For example, after returning to the display of the main screen 33 a (step S41), the measurement control unit 30 c of the control device 22 determines whether or not an instruction to start the measurement of the terminal 11 a is input from the operation unit (step S42). If it is determined that the instruction to start the measurement is not input (NO in step S42), the processing proceeds to step S47.

In contrast, if it is determined that the instruction to start the measurement is input (YES in step S42), the measurement control unit 30 c collectively controls the NR measurement device 20 and the LTE measurement device 21, and starts the measurement of the terminal 11 a (Step S43). in a case where measuring the terminal 11 a, the measurement control unit 30 c captures a signal transmitted to and received from the terminal 11 a as a measurement target while controlling the drive of the NR measurement device 20 and the LTE measurement device so as to simulate the operation of each base transceiver station in the non-standalone NR in accordance with a preset scenario (step S44), and measures the terminal 11 a on the basis of the captured signal. On the other hand, the display control unit 30 d displays change in the measurement-related information on the main screen 33 a and the like by reflecting the signal captured in step S43 (step S45).

As an example of the display of change in step S45, the display control unit 30 d displays the respective connection statuses of the NR area and the LTE area in the non-standalone NR network in the connection status display area of the main screen 33 a. Specifically, for example, as shown in FIGS. 9 to 12, the display control unit 30 d performs display in a form in which rectangular frames corresponding to the number of base transceiver stations corresponding to each area set in the current measurement are vertically stacked to be adjacent to the BTS icons indicating the base transceiver stations in each of the NR area and the LTE area.

While displaying the main screen 33 a on which display is changed in step S45, the display control unit 30 d monitors whether or not the connection status area 33 a 2 of the main screen 33 a is selected (clicked) (step S45). Here, if it is determined that the connection status area 33 a 1 of the main screen 33 a is not clicked (NO in Step S45), the processing proceeds to Step S47.

In contrast, if it is determined that the connection status area 33 a 2 of the main screen 33 a is clicked (YES in step S45), for example, a DC operation confirmation screen 33 e shown in FIG. 17 is displayed on the display unit 33 (step S46). The DC operation confirmation screen 33 e has a DC operation status display area 33 e 2 for displaying an image of the DC operation status. In the example of FIG. 17, the display control unit 30 d displays, as images, the operation mode based on the DC system in the NR area and the operation mode based on the CA system in the LTE area, in the DC operation status display area 33 e 2.

In the display processing of step S46, a DC operation confirmation screen 33 f (refer to FIG. 18) having a screen structure different from that of the DC operation confirmation screen 33 e can be displayed. Also in the DC operation confirmation screen 33 f, the DC operation status display area 33 e 2 displays the operation mode based on the DC system in the NR area and the operation mode based on the CA system in the LTE area as images.

During the display processing of the DC operation confirmation screen 33 e (or 33 f) in step S46, or after the display processing is completed, for example, in a state where the display is returned to the main screen 33 a, the display control unit 30 d determines whether or not an operation confirmation request for issuing an instruction to confirm the operation status relating to the measurement of the terminal 11 a is input (step S47). If it is determined that the operation confirmation request is not input (NO in step S47), the processing proceeds to step S49.

In contrast, if it is determined that the operation confirmation request is input (YES in step S47), the display control unit 30 d causes the display unit 33 to display an operation confirmation screen corresponding to the request (step S48).

Regarding the processing of steps S47 and S48 in FIG. 8, in a case where a test case confirmation request is input in step S47, for example, the display control unit 30 d displays, in step S48, a test case confirmation screen 33 g as shown in FIG. 19. In addition, for example, in a case where a component confirmation request is input in step S47, the display control unit 30 d displays, for example, a component confirmation screen 33 h as shown in FIG. 20 in step S48. In addition, in response to the component confirmation request, for example, a component confirmation screen 33 i as shown in FIG. 21 may be displayed.

In addition, for example, in a case where a power characteristic confirmation request is input in step S47, the display control unit 30 d displays, for example, in step S48, the power characteristic confirmation screen 33 j as shown in FIG. 22 is displayed, and in a case where a throughput confirmation request is input in step S47, for example, a throughput confirmation screen 33 k as shown in FIG. 23 is displayed in step S48.

With the various operation confirmation screens displayed in step S48, the display control unit 30 d determines whether or not an end request for issuing an instruction to end the processing is input (step S49). Here, if it is determined that the end request is not input (NO in step S49), the display control unit 30 d returns to step S41 in accordance with the instruction to return the processing, displays the main screen 33 a, and then continues the processing in and after step S41.

In contrast, if it is determined that the end request is input (YES in step S49), the display control unit 30 d ends the above-described series of display control in the measurement stage of the terminal 11 a.

Next, the display forms of the DC operation confirmation screens 33 e and 33 f (refer to FIG. 17 and FIG. 18) relating to a series of display control shown in FIG. 8, the test case confirmation screen 33 g (refer to FIG. 19), the component confirmation screens 33 h and 33 i (refer to FIGS. 20 and 21), the power characteristic confirmation screen 33 j (refer to FIG. 22), and the throughput confirmation screen 33 k (refer to FIG. 23) will be described in more detail.

Both the DC operation confirmation screens 33 e (refer to FIG. 17) and 33 f (refer to FIG. 18) displayed in step S46 can be displayed, for example, by performing a click operation near the display area of the NR cell icon and the LTE cell icon in the connection status display area 33 a 2 of the main screen 33 a (refer to FIG. 8) after the measurement of the terminal 11 a is started. The DC operation confirmation screens 33 e and 33 f respectively have an operation data display area 33 e 1 and an operation image display area 33 e 2. The DC operation confirmation screen 33 e and the DC operation confirmation screen 33 f are display examples in a case where settings for the DC operation are different, and there is no difference in the screen configuration. The DC operation confirmation screen 33 e shows a scroll status in which the operation data display area 33 e 1 is easily viewed, and the DC operation confirmation screen 33 f shows a scroll status in which the operation image display area 33 e 2 is easily viewed.

As shown in FIGS. 17 and 18, in the DC operation confirmation screens 33 e and 33 f, the operation data display area 33 e 1 has an NR operation data display area and an LTE operation data display area. In the NR operation data display area, detailed data according to a DC operation mode in which CCs of different base transceiver stations in the NR area are bundled is displayed. In the LTE operation data display area, detailed data relating to an operation mode based on the CA system that bundles CCs of the same base transceiver station in the LTE area is displayed.

Further, in the operation image display area 33 e 2 in the DC operation confirmation screens 33 e and 33 f, the operation mode based on the DC system in the NR area and the operation mode based on the CA system in the LTE area are displayed using images indicating the respective operation modes. For example, in the operation image display area 33 e 2 of the DC operation confirmation screen 33 f shown in FIG. 17, an image, in which one rectangular frame is attached to the NR cell icon while three rectangular frames are attached to the LTE cell icon, is displayed, and an image, in which a base transceiver station corresponding to the rectangular frame displayed and attached to the NR cell icon and three base transceiver stations respectively corresponding to the three rectangular frames attached to the LTE cell icon communicate with the user equipment UE indicating the terminal 11 a, is displayed. In the operation image display area 33 e 2 of the DC operation confirmation screen 33 e shown in FIG. 17, the same kind of images are displayed although it is difficult to view the images at the scroll position.

As described above, the display control unit 30 d has a display function of displaying images indicating an operation mode based on the DC system in the NR area and an operation mode based on the CA system in the LTE area.

In the present embodiment, by adopting the display form shown in the operation image display area 33 e 2 of FIGS. 17 and 18, the operation status of the DC system and the CD system in the non-standalone NR can be easily detected.

The screens, which can be displayed in step S48 of FIG. 8, include the test case confirmation screen 33 g (refer to FIG. 19), component confirmation screens 33 h and 33 i (refer to FIG. 20 and FIG. 21), the power characteristic confirmation screen 33 j (refer to FIG. 22), and the throughput confirmation screen 33 k (refer to FIG. 23).

The test case confirmation screen 33 g is a screen for setting an optional cell from the NR cell or the LTE cell, performing a measurement of the terminal 11 a on a trial basis, and confirming the radio condition of the set cell. The test case confirmation screen 33 g can be displayed in a predetermined area on the main screen 33 a in a manner shown in FIG. 19 in accordance with a tab selection operation on the main screen 33 a, for example, during execution of the above-described test measurement.

In the measurement device 1A according to the present embodiment, in a case where the tab selection operation is performed, the display control unit 30 d displays an image, which shows the radio condition of the NR cell or LTE cell being set as a test case, in the form shown in FIG. 19, on the basis of the setting contents of the number of RAT cells and the signal which is input from the NR measurement-related information determination unit 13 k of the pseudo base transceiver station control unit 4.

The test case confirmation screen 33 g shown in FIG. 19 particularly relates to an LTE cell. At this time, the display control unit 30 d draws an image, to which a label text (identification information) including the RAT name “LTE” and the base transceiver station number (BTS number) of the LTE cell is attached, on the LTE cell icon represented by the LTE abbreviation “L”. In the example of FIG. 19, an image in which a label text “LTE1” is attached to the LTE cell icon is displayed. The image includes a line segment indicating, for example, an elliptical wireless range of a cell being set as a test case.

Similarly, in the test case confirmation screen 33 g in a case where an NR cell is set as a test case, the display control unit 30 d draws an image in which a label text including the RAT name “NR” and the BTS numbers “1, 2, 3, . . . ” of the NR cells is attached to the NR cell icon represented by the abbreviation symbol “N” for NR.

As described above, in the present embodiment, the display control unit 30 d has a display function of displaying the test case confirmation screen for confirming the radio condition of the cell which is set as the test case among the NR cells or the LTE cells and drawing an image in which identification information including the RAT name and the base transceiver station number of the cell is attached to the NR cell icon or LTE cell icon corresponding to the RAT type for each cell set as a test case on the test case confirmation screen 33 g.

In the present embodiment, the test case confirmation screen 33 g is displayed in a form in which a label text in the format of “RAT name” and “BTS number” is attached to the NR cell icon or LTE cell icon. Therefore, even in a case where the number of BTSs is increased, the display space is sufficient, and the visibility can be ensured.

The component confirmation screens 33 h and 33 i are screens for confirming the carrier operation status during measurement of the terminal 11 a between cells which are set as a combination for executing a scenario, and respectively have, for example, screen configurations as shown in FIGS. 20 and 21. The component confirmation screens 33 h and 33 i are common in that the CC is indicated by a carrier icon having a rectangular shape with rounded corners, for example, but differ in a method of bundling carriers for LTE. The component confirmation screen 33 h shows an example in which carriers are bundled into one frequency band (band) in LTE, and the component confirmation screen 33 i shows an example in which the carriers are bundled into a plurality of bands (two bands).

As shown in FIG. 20, the component confirmation screen 33 h has a carrier operation display area 33 h 1 and a CA/DC setting condition display area 33 h 2. In the carrier operation display area 33 h 1, the carrier use status between the RAT cells being set is displayed using a carrier icon. As shown in FIG. 20, the component confirmation screen 33 h has a screen configuration that represents the bands bundled by arranging the component icons corresponding to several CCs that are the components of the bundled frequency bands.

Specifically, in the component confirmation screen 33 h, display areas 35 f and 35 g corresponding to the master node and the secondary node are ensured in the carrier operation display area 33 h 1. In the upper master node display area 35 f, an LTE cell icon is displayed next to the notation “Master Node”, and below the LTE cell icon, component icons corresponding to the CC bundled as Band 1 are arranged in the horizontal direction, and those are displayed to be divided into DL (downlink) and UL (uplink). In the example of FIG. 20, for the DL, three component icons respectively corresponding to three CCs that are radio resources of LTE1, LTE2, and LTE3 are displayed. For UL, a component icon corresponding to one CC that is a radio resource of LTE1 is displayed.

All component icons have, for example, rectangular shapes with rounded corners and the same size. However, the component icon corresponding to the CC that is the radio resource of the master node and the component icon corresponding to the CC that is the radio resource of the secondary node are displayed in different colors. In FIG. 20, for example, the component icons displayed in blue are hatched. The component icons not hatched are displayed in red, for example.

Further, in each component icon, identification information for identifying a cell as a resource source is described inside the icon. As the identification information, for example, a label text including a RAT name and a base transceiver station number is used. A numerical value (for example, “10”, in units of MHz) indicating the band of each corresponding CC is noted above each component icon, and a total value thereof (for example, “30 MHz”) is noted next to the numerical value. A symbol indicating that the corresponding CCs are bundled together and a band name (for example, Band1) are noted below the component icons.

In the display area 35 g of the secondary node below the display area 35 f of the master node in the carrier operation display area 33 h 1, an NR cell icon is displayed beside the notation of “secondary Node”, and below the notation, for example, the component icons corresponding to the CCs bundled as BTsn77 are displayed. The component icons in the display area of the secondary node are basically displayed in the above-described display form of the component icons in the display area of the master node.

Similarly to the component confirmation screen 33 h, the component confirmation screen 33 i shown in FIG. 21 has a screen configuration including a carrier operation display area 33 i 1 and a CA/DC setting condition display area 33 i 2. However, the configuration of the CA/DC setting condition display area 33 i 2 is a screen configuration different from the CA/DC setting condition display area 33 h 2 in the component confirmation screen 33 h.

In the carrier operation display area 33 i 1 of the component confirmation screen 33 i, the component icons are displayed in a manner different from that of the carrier operation display area 33 h 1 (refer to FIG. 20) so as to correspond to the CA/DC setting condition display area 33 i 2. In the example of FIG. 20, the display form of the component icons relating to DL in the display area 35 f of the master node of the carrier operation display area 33 i 1 is different from that of the carrier operation display area 33 h 1. The DL in the display area 35 f of the master node of the carrier operation display area 33 i 1 is displayed in such a manner that it is possible to know a situation where Band1 corresponding to the radio resource of LTE1 and Band3 that bundles the radio resources of LTE2 and LTE3 are used. The display form of the other part of the carrier operation display area 33 i 1 is the same as that of the carrier operation display area 33 h 1.

As described above, in the measurement device 1A according to the present embodiment, the display control unit 30 d has a display function of displaying the component confirmation screen and the component icons classified into a master node, a secondary node, an uplink and a downlink. In the component confirmation screen, the component icons having the same shape indicating the CCs to be bundled on the basis of the CA system and the DC system are arranged, the identification information including the RAT name and the base transceiver station number serving as a resource of the CC is noted in each component icon, and a bandwidth of the CC is noted above the component icon.

Conventionally, as a method of confirming the CC, for example, there is a method in which the width of the component icon is changed and displayed in accordance with the value of the bandwidth set for each BTS. Further, conventionally, as image drawing for multi-cells, there is image drawing for only LTE.

On the other hand, in the present embodiment, as shown in FIGS. 20 and 21, the component icons are unified into the same shape and are all displayed with the same width, and are displayed in a form in which the identification information including the RAT name and the base transceiver station number is noted in the component icon and the bandwidth is noted above the component icon. For this reason, in the present embodiment, even in a case where the number of BTSs increases, the display area can be spread horizontally, and the RAT type can be easily detected.

The power characteristic confirmation screen 33 j has, for example, a power characteristic display area 33 j 1, a power adjustment display area 33 j 2, and an operation status display area 33 j 3, as shown in FIG. 22. The power characteristic display area 33 j 1 is an area for displaying the power of the component carrier of the set cell using a graph in which the horizontal axis represents time and the vertical axis represents power. The power adjustment display area 33 j 2 is an area for displaying setting items for power adjustment of component carriers of each cell. The operation status display area 33 j 3 is an area where an image of the operation status of each cell is drawn using each cell and each image which indicates the terminal 11 a as a measurement target.

The power characteristic confirmation screen 33 j can be displayed by, for example, a tab operation on the main screen 33 a as necessary. In order to display the power characteristic confirmation screen 33 j, the control unit 31 (refer to FIG. 5) of the control device 22 includes a power detection function unit, which is not shown, for detecting the power of a component carrier as a resource of each NR and LTE cells, for which a combination is set in accordance with a scenario, on the basis of the signal (the signal transmitted from the terminal 11 a during the simulative communication) which is output by the NR measurement-related information determination unit 13 k of the pseudo base transceiver station control unit 4. The power detection function unit may be provided in another position, for example, in the display control unit 30 d.

The display control unit 30 d draws, as a graph, the power characteristics (characteristics of change in power value with respect to time) of the component carriers of the NR and LTE cells detected by the power detection function unit in the power characteristic display area 33 j 1 compliant with the NR cells and the LTE cells.

Conventionally, this type of display of the power characteristic corresponds only to LTE, and the power of each cell is not displayed compliant with LTE and NR as in the present embodiment. According to the configuration of the present embodiment in which the power characteristics of the NR cell and the LTE cell are displayed on the same graph, the power characteristics of the NR cell and the LTE cell relating to DC in the non-standalone NR can be easily and reliably detected.

The display control unit 30 d draws an operation status image of the NR cells and the LTE cells in the operation status display area 33 j 3 in accordance with the display of the graph showing the power characteristics of the NR cell and the LTE cell in the power characteristic display area 33 j 1 of the power characteristic confirmation screen 33 j.

Here, for example, as shown in FIG. 22, there are a plurality of base transceiver stations which are set as cells to be subjected to the simulative communication operation in the NR area and the LTE area. In this case, the display control unit 30 d performs display such that two NR cell icons and two LTE cell icons respectively corresponding to the first and last base transceiver stations are displayed side by side for each of the NR area and the LTE area, and performs display in a form in which the identification information pieces in which the RAT names, the first base transceiver station numbers, and the last base numbers are separately listed are noted in association with the two NR cell icons and the two LTE cell icons.

Specifically, in the example of FIG. 22, in the NR area, the display control unit 30 d performs display in a form in which the two NR cell icons with the symbol “NR” are arranged side by side and the first base transceiver station number “1” subsequent to “NR” and the next base transceiver station number “2” are noted to be separated by, for example, a comma below both NR cell icons. Similarly, in the LTE area, the display is performed in a form in which two LTE cell icons with the LTE abbreviation [L] are arranged side by side and the first base transceiver station number “1” subsequent to “LTE” and the next base transceiver station number “3” are noted to be separated by commas below both LTE cell icons.

As a modification example in this case, in a case where three or more cells are set, the display control unit 30 d may change the display form relating to “NR1, 2” and “LTE1, 2, 3” in FIG. 22 to a display form of “NR1-3” and “LTE1-5” or the like by connecting the first base transceiver station number and the last base transceiver station number through, for example, a line segment.

As described above, in the measurement device 1A according to the present embodiment, there are a plurality of base transceiver stations which are set as cells in the NR area and the LTE area. In this case, the display control unit 30 d performs display such that two BTS icons (NR cell icon and LTE cell icon) respectively corresponding to the first and last base transceiver stations are displayed side by side for each of the NR area and the LTE area, and performs display in a form in which one identification information piece in which the RAT name, the first base transceiver station number, and the last base number are separately arranged is attached to the two NR cell icons (first cell icons) and the two LTE cell icons (second cell icons). By providing this function, it is possible to deal with the non-standalone NR, and it is possible to easily detect the operation status of the NR cell and the LTE cell.

The throughput confirmation screen 33 k has, for example, a throughput display area 33 k 1 and a carrier operation status display area 33 k 2 as shown in FIG. 23. The throughput display area 33 k 1 is an area for displaying the throughputs of the component carriers listed in the carrier operation status display area 33 k 2 by using a graph in which the horizontal axis represents time and the vertical axis represents the processing amount (unit is, for example, kbps).

The throughput confirmation screen 33 k can be displayed by, for example, a predetermined tab operation on the main screen 33 a. In order to display the throughput confirmation screen 33 k, the control unit 31 (refer to FIG. 5) of the control device 22 includes a throughput measurement function unit for detecting the throughput of a component carrier as a radio resource of each NR and LTE cells, for which a combination is set in accordance with a scenario, on the basis of the signal (the signal transmitted from the terminal 11 a during the simulative communication) which is output by the NR measurement-related information determination unit 13 k of the pseudo base transceiver station control unit 4. The throughput measurement function unit may be provided in another position such as the display control unit 30 d.

The display control unit 30 d draws, as a graph in the form shown in FIG. 23, the characteristic of the throughput of the component carrier used by each NR and LTE cells detected by the throughput detection function unit, in the throughput display area 33 k 1.

Conventionally, the display of the throughput characteristic of the component carrier generally corresponds to only the LTE. The display is not performed such that the throughput characteristics of the NR cell and the LTE cell compliant with the LTE and the NR are collectively displayed at one place as in the present embodiment. According to the configuration of the present embodiment in which the throughput characteristics of the carriers that are the radio resources of the NR cell and the LTE cell are collectively displayed at one place as a graph, the throughput characteristics relating to the carriers of the DC NR cell and the LTE cell in the non-standalone NR can be detected easily and reliably.

As described above, a communication terminal measurement system 1B of the present embodiment is configured to include: an NR measurement device 20 that is compliant with NR which is the first communication standard of the terminal 11 a; an LTE measurement device 21 that is compliant with LTE which is the second communication standard of the terminal 11 a; a control device 22 that has a control unit 31 controlling the terminal 11 a through the NR measurement device 20 and the LTE measurement device 21, and a display unit 33 displaying control contents of the control unit 31. The communication terminal measurement system 1B tests the terminal 11 a by simulating three or more base transceiver stations each of which is compliant with the NR and the LTE. The display unit 33 includes tabs 41 a and 41 b for identifying the NR or the LTE, a simulation parameter setting screen 33 c 1 for NR in which simulation parameters of respective base transceiver stations compliant with the NR are displayed in array for each base transceiver station, and a simulation parameter setting screen 33 c 2 for LTE, in which simulation parameters of respective base transceiver stations compliant with the LTE are displayed in array for each base transceiver station. In a case of receiving either the NR or the LTE on the tabs 41 a and 41 b, the control unit 31 is configured to perform control for displaying the simulation parameter setting screen 33 c 1 or the simulation parameter setting screen 33 c 2 in accordance with the tab 41 a or 41 b for identifying the selected communication standard.

With such a configuration, the communication terminal measurement system 1B of the present embodiment is able to display a list of simulation parameters of base transceiver stations compliant with the NR or the LTE. Thereby, it is easy to understand the simulation parameter information of a plurality of base transceiver stations corresponding to each communication standard. As a result, even in a case where the number of base transceiver stations increases, it is possible to efficiently set the simulation parameters while viewing the overall situation for each communication standard, and to easily confirm the settings. In addition, the simulation parameters can be set and the settings can be confirmed using two types of tabs 41 a and 41 b. Thus, it is possible to make a screen configuration, which is simpler, easier to view, and has better operability than that of the conventional system that requires the number of tabs corresponding to the number of base transceiver stations.

Further, the communication terminal measurement system 1B according to the present embodiment may be configured such that the display unit 33 further includes a base transceiver station selection toolbar 45 in which base transceiver station selection tabs 46 for individually selecting base transceiver stations each of which is compliant with the NR and the LTE are arranged in a line; and a display command toolbar 47 which is disposed adjacent to the base transceiver station selection toolbar 45, and the control unit 31 selects a base transceiver station for the NR or a base transceiver station for the LTE on the base transceiver station selection tab 46, and then displays a connection parameter of connection between any one of the selected base transceiver stations and the terminal 11 a in accordance with a selection operation of the display command toolbar 47.

With such a configuration, in the communication terminal measurement system 1B according to the present embodiment, it is possible to make a screen, which is for displaying connection parameters of a base transceiver station having a desired communication standard and a base transceiver station number, have a simple configuration including two toolbars of a base transceiver station selection toolbar 45, and a display command toolbar 47 and displaying only the connection parameters of the base transceiver station selected by the base transceiver station selection toolbar 45. Thereby, it is possible to prevent the screen from being covered with toolbars and being difficult to view, as in a conventional system having the number of toolbars corresponding to the number of base transceiver stations and displaying connection parameters of a plurality of base transceiver stations. As a result, it is possible to make the operation of confirming the connection parameters easy.

Further, the communication terminal measurement system 1B according to the present embodiment is configured such that the display unit 33 further includes a main screen 33 a which includes a connection status display area 33 a 2 and in which the base transceiver station selection toolbar 45 and the display command toolbar 47 are arranged and in which the tab 41 a or 41 b is provided, and the control unit 31 displays the simulation parameter setting screen 33 c 1 for NR or the simulation parameter setting screen 33 c 2 for LTE in the connection status display area 33 a 2, in a case of receiving the selection of the tab 41 a or 41 b.

With such a configuration, the communication terminal measurement system 1B according to the present embodiment is able to ensure an area for setting simulation parameters for the NR or the LTE on the connection status display area 33 a 2 of the main screen 33 a in accordance with the selection of the tab 41 a or 41 b. Thus, simulation parameters of each communication standard can be set and settings can be promptly confirmed.

Further, the communication terminal measurement system 1B according to another aspect of the present embodiment is configured such that, in a case of receiving the selection of the tab 41 a or 41 b and then further receives a predetermined non-display selection operation, the control unit 31 hides the simulation parameter setting screen 33 c 1 for NR or the simulation parameter setting screen 33 c 2 for LTE being displayed.

With such a configuration, the communication terminal measurement system 1B according to another aspect of the present embodiment is able to promptly access the functions of the main screen 33 a while improving the performance while improving operability relating to the simulation parameter setting and setting confirmation by displaying the simulation parameter setting screen 33 c 1 for NR or the simulation parameter setting screen 33 c 2 for LTE.

Further, the communication terminal measurement system 1B according to the present embodiment is configured such that the first communication standard is NR and the second communication standard is LTE. With such a configuration, in the communication terminal measurement system 1B according to another aspect of the present embodiment, it is possible to efficiently set simulation parameters while viewing the overall situation for each NR and LTE communication standard, even in a case where either the number of NR base transceiver stations or the number of LTE base transceiver stations increases. In addition, using only two types of tabs, it is possible to perform a smooth transition to the work of setting simulation parameters relating to NR and LTE and confirming the settings.

Further, the NR measurement device 20 or the LTE measurement device 21 of the present embodiment has a configuration corresponding to either the NR or the LTE, which is used in the communication terminal measurement system 1B according to the present embodiment.

With such a configuration, in the NR measurement device 20 or the LTE measurement device 21 according to the present embodiment, even in a case where the number of base transceiver stations compliant with the NR or the LTE increases, the communication terminal measurement system 1B according to the present embodiment is able to efficiently carry out the test of the terminal 11 a corresponding to either the NR or the LTE in accordance with the fact that the simulation parameters can be efficiently set while viewing the overall situation for each communication standard and the setting can be easily confirmed. In addition, the NR measurement device 20 or the LTE measurement device 21 of the present embodiment allows the communication terminal measurement system 1B according to any one of the above-described aspects to be able to set the simulation parameter and confirm the setting by using two types of tabs, and to smoothly carry out tests of terminals 11 a compliant with either the NR or the LTE in accordance with a screen configuration which is simple, is comfortable to view, and has favorable operability, as compared with the conventional system.

Further, a measurement device 1A according to the present embodiment tests a terminal 11 a by simulating three or more base transceiver stations each of which is compliant with a NR and a LTE. The measurement device 1A includes: a control unit 31 that controls the measurement device 1A; and a display unit 6 e that displays control contents of the control unit 31. The display unit 6 e includes tabs 41 a and 41 b for identifying the NR or the LTE, a simulation parameter setting screen 33 c 1 in which simulation parameters of each of the base transceiver stations compliant with the NR are displayed in array for each base transceiver station, and a simulation parameter setting screen 33 c 2 for LTE in which simulation parameters of each of the base transceiver stations compliant with the LTE are displayed in array for each base transceiver station, and the control unit 31 performs control such that in a case of receiving selection of either the NR or the LTE on the tab 41 a or 41 b, the simulation parameter setting screen 33 c 1 for NR or the simulation parameter setting screen 33 c 2 for LTE is displayed in accordance with the tab 41 a or 41 b for identifying the selected communication standard.

With such a configuration, the measurement device 1A according to the present embodiment is able to display a list of simulation parameters of base transceiver stations respectively compliant with the NRs or the LTEs through the display control of the control unit 31. Thereby, it is easy to understand the simulation parameter information of a plurality of base transceiver stations corresponding to each communication standard. As a result, even in a case where the number of base transceiver stations increases, it is possible to efficiently set the simulation parameters while viewing the overall situation for each of NRs or LTEs, and to easily confirm the settings. In addition, the simulation parameters can be set and the settings can be confirmed using two types of tabs 41 a and 41 b. Thus, it is possible to make a screen configuration, which is simpler, easier to view, and has better operability than that of the conventional system that requires the number of tabs corresponding to the number of base transceiver stations.

Further, a measurement device 1A according to the present embodiment tests a terminal 11 a by simulating three or more base transceiver stations each of which is compliant with a NR and a LTE. The measurement device 1A is controlled by the control device 22 including: a control unit 31 that controls the measurement device 1A; and a display unit 33 that displays control contents of the control unit 31. The display unit 33 includes tabs 41 a and 41 b for identifying the NR or the LTE, a simulation parameter setting screen 33 c 1 in which simulation parameters of each of the base transceiver stations compliant with the NR are displayed in array for each base transceiver station, and a simulation parameter setting screen 33 c 2 for LTE in which simulation parameters of each of the base transceiver stations compliant with the LTE are displayed in array for each base transceiver station, and the control unit 31 performs control such that in a case of receiving selection of either the NR or the LTE on the tab 41 a or 41 b, the simulation parameter setting screen 33 c 1 for NR or the simulation parameter setting screen 33 c 2 for LTE is displayed in accordance with the tab 41 a or 41 b for identifying the selected communication standard.

With such a configuration, the measurement device 1A according to the present embodiment is able to display a list of simulation parameters of base transceiver stations compliant with the NR or the LTE through the display control in the control unit 31 of the control device 22. Thereby, it is easy to understand the simulation parameter information of a plurality of base transceiver stations corresponding to each communication standard. As a result, even in a case where the number of base transceiver stations increases, it is possible to efficiently set the simulation parameters while viewing the overall situation for each of NRs or LTEs, and to easily confirm the settings. In addition, the simulation parameters can be set and the settings can be confirmed using two types of tabs 41 a and 41 b. Thus, it is possible to make a screen configuration, which is simpler, easier to view, and has better operability than that of the conventional system that requires the number of tabs corresponding to the number of base transceiver stations.

Further, a measurement-related information display method of the present embodiment simulates three or more base transceiver stations each of which is compliant with a NR which is a first communication standard of the terminal 11 a and a LTE which is a second communication standard of the terminal 11 a and displaying measurement-related information relating to measurement of a terminal 11 a. The method includes: displaying a main screen 33 a having tabs 41 a and 41 b for identifying the NR or the LTE (S31); receiving a selection of either the NR or the LTE on the tab 41 a or 41 b (S36 a); and performing control to display, on the main screen 33 a, a simulation parameter setting screen 33 c 1 for NR, in which simulation parameters of each of the base transceiver stations compliant with the NR are displayed in array for each base transceiver station, or a simulation parameter setting screen 33 c 2 for LTE, in which the simulation parameters of each of the base transceiver stations compliant with the LTE are displayed in array for each base transceiver station, in accordance with the tab 41 a or 41 b for identifying the selected communication standard (S36 b, S36 c, S36 d).

With such a configuration, in the measurement-related information display method of the present embodiment, a list of simulation parameters of base transceiver stations compliant with the NR or the LTE is displayed, and the simulation parameters can be efficiently set while the overall situation is viewed for each communication standard even in a case where the number of base transceiver stations increases. As a result, it is possible to display an operation screen which is easy to confirm setting, is simple, is comfortable to view, and has favorable operability.

Although the present embodiment has exemplified the operation mode in which 5GNR and LTE are mixed, the present embodiment may be applied to even an operation mode in which LTE and pre-LTE, or future 5GNR and the next communication standard are used.

INDUSTRIAL APPLICABILITY

As described above, the communication terminal measurement system, the communication terminal measurement apparatus, and the measurement-related information display method according to the present invention are available for all of a communication terminal measurement system, a communication terminal measurement apparatus, and a measurement-related information display method that test the communication terminal compliant with new and old communication standards and that has an effect capable of displaying an operation screen which is comfortable to view and has favorable operability in order to perform setting of simulation parameters and confirm the setting even in a case where the number of base transceiver stations compliant with old and new communication standards increases.

DESCRIPTION OF REFERENCE NUMERALS AND SIGNS

-   -   1A measurement device (communication terminal measurement         apparatus)     -   1B communication terminal measurement system     -   6 e NR measurement-related display unit (display unit)     -   11 a terminal (mobile communication terminal)     -   20 NR measurement device (communication terminal measurement         apparatus compliant with first communication standard)     -   21 LTE measurement device (communication terminal measurement         apparatus compliant with second communication standard)     -   22 control device     -   31 control unit     -   33 display unit     -   33 a main screen     -   33 a 2 connection status display area     -   33 c 1 simulation parameter setting screen (first simulation         parameter display area)     -   33 c 2 simulation parameter setting screen (second simulation         parameter display area)     -   41 a, 41 b tabs (tabs for selecting communication standard)     -   45 base transceiver station selection toolbar     -   46, 46 a, 46 b, 46 c, 46 d, 46 e, 46 f, 46 g base transceiver         station selection tab     -   47 display command toolbar 

What is claimed is:
 1. A communication terminal measurement system comprising: a communication terminal measurement apparatus that is compliant with a first communication standard of mobile communication; a communication terminal measurement apparatus that is compliant with a second communication standard of mobile communication; a control device that has a control unit controlling the communication terminal measurement apparatus compliant with the first communication standard and the communication terminal measurement apparatus compliant with the second communication standard, and a display unit displaying control contents of the control unit, wherein a mobile communication terminal is tested by simulating three or more base transceiver stations each of which is compliant with the first communication standard or the second communication standard, the display unit includes tabs for identifying the first communication standard or the second communication standard, and the control unit performs control such that the display unit displays a first simulation parameter display area, in which simulation parameters of respective base transceiver stations compliant with the first communication standard are displayed in array for each base transceiver station, in a case where the first communication standard is selected on the tabs, and the display unit displays a second simulation parameter display area, in which simulation parameters of respective base transceiver stations compliant with the second communication standard are displayed in array for each base transceiver station in a case where the second communication standard is selected on the tabs.
 2. The communication terminal measurement system according to claim 1, wherein the display unit further includes a base transceiver station selection toolbar in which base transceiver station selection tabs for individually selecting base transceiver stations each of which is compliant with the first communication standard or the second communication standard are arranged in a line; and a display command toolbar which is disposed adjacent to the base transceiver station selection toolbar, and after a base transceiver station for the first communication standard or a base transceiver station for the second communication standard is selected by the base transceiver station selection tab, the control unit displays a connection parameter of connection between any one of the selected base transceiver stations and the mobile communication terminal in accordance with a selection operation of the display command toolbar.
 3. The communication terminal measurement system according to claim 2, wherein the display unit further includes a main screen which includes a connection status display area and in which the base transceiver station selection toolbar and the display command toolbar are arranged and in which the tab is provided, and the control unit displays the first simulation parameter display area or the second simulation parameter display area in the connection status display area, in a case of receiving the selection of the tab.
 4. The communication terminal measurement system according to claim 3, wherein in a case where the control unit receives the selection of the tab and then further receives a predetermined non-display selection operation, the control unit hides the first simulation parameter display area or the second simulation parameter display area being displayed.
 5. The communication terminal measurement system according to claim 1, wherein the first communication standard is NR, and the second communication standard is LTE.
 6. A communication terminal measurement apparatus that tests a mobile communication terminal by simulating three or more base transceiver stations each of which is compliant with a first communication standard or a second communication standard, the communication terminal measurement apparatus comprising: a control unit that controls the communication terminal measurement apparatus; and a display unit that displays control contents of the control unit, wherein the display unit includes tabs for identifying the first communication standard or the second communication standard, a first simulation parameter display area in which simulation parameters of each of the base transceiver stations compliant with the first communication standard are displayed in array for each base transceiver station, and a second simulation parameter display area in which simulation parameters of each of the base transceiver stations compliant with the second communication standard are displayed in array for each base transceiver station, and the control unit performs control such that in a case of receiving selection of either the first communication standard or the second communication standard on the tab, the first simulation parameter display area or the second simulation parameter display area is displayed in accordance with the tab for identifying the selected communication standard.
 7. The communication terminal measurement apparatus according to claim 6, wherein the display unit further includes a base transceiver station selection toolbar in which base transceiver station selection tabs for individually selecting base transceiver stations each of which is compliant with the first communication standard or the second communication standard are arranged in a line; and a display command toolbar which is disposed adjacent to the base transceiver station selection toolbar, and after a base transceiver station for the first communication standard or a base transceiver station for the second communication standard is selected by the base transceiver station selection tab, the control unit displays a connection parameter of connection between any one of the selected base transceiver stations and the mobile communication terminal in accordance with a selection operation of the display command toolbar.
 8. The communication terminal measurement apparatus according to claim 7, wherein the display unit further includes a main screen which includes a connection status display area and in which the base transceiver station selection toolbar and the display command toolbar are arranged and in which the tab is provided, and the control unit displays the first simulation parameter display area or the second simulation parameter display area in the connection status display area in a case of receiving the selection of the tab.
 9. The communication terminal measurement apparatus according to claim 8, wherein in a case where the control unit receives the selection of the tab and then further receives a predetermined non-display selection operation, the control unit hides the first simulation parameter display area or the second simulation parameter display area being displayed.
 10. The communication terminal measurement apparatus according to claim 9, wherein the first communication standard is NR, and the second communication standard is LTE.
 11. A measurement-related information display method of simulating three or more base transceiver stations each of which is compliant with a first communication standard or a second communication standard and displaying measurement-related information relating to measurement of a mobile communication terminal, the method comprising: a step of displaying a main screen having tabs for identifying the first communication standard or the second communication standard; a step of receiving a selection of either the first communication standard or the second communication standard on the tab; and a step of performing control to display, on the main screen, a first simulation parameter display area, in which simulation parameters of each of the base transceiver stations compliant with the first communication standard are displayed in array for each base transceiver station, or a second simulation parameter display area, in which the simulation parameters of each of the base transceiver stations compliant with the second communication standard are displayed in array for each base transceiver station, in accordance with the tab for identifying the selected communication standard. 